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The RADIUS Flex Brush is a professional-grade manual toothbrush featuring a supersized oval brush head and flexible neck technology designed to improve gum health and reduce irritation. Made with BPA-free, vegetable-based nylon bristles that last 3X longer than typical brushes, it combines sustainability with superior cleaning power. Its award-winning ergonomic handle promotes optimal brushing angle and control, earning ADA acceptance for effective plaque removal and gingivitis prevention. Perfect for millennials seeking a premium, eco-conscious oral care upgrade.













| ASIN | B09H3M4Y8X |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Best Sellers Rank | #43,749 in Health & Household ( See Top 100 in Health & Household ) #258 in Manual Toothbrushes |
| Brand | RADIUS |
| Brand Name | RADIUS |
| Bristle Material | Nylon |
| Color | Lime/White |
| Customer Reviews | 4.6 out of 5 stars 2,683 Reviews |
| Handle Material | Wood |
| Included Components | Radius Flex Toothbrush |
| Item Dimensions | 1.25 x 2.25 x 9 inches |
| Item Firmness Description | Ultra Soft |
| Item Nype Name | FLEX BRUSH |
| Item Weight | 0.1 Pounds |
| Manufacturer | RADIUS Corporation |
| Manufacturer Part Number | SRB-177 |
| Material Features | Reusable |
| Model Name | 3x the normal toothbrush’s bristles |
| Model Number | SRB-177 |
| Mount Motion | manual |
| Number of Items | 1 |
| Number of Pieces | 1 |
| Number of settings | 1 |
| Operation Mode | Manual |
| Other Special Features of the Product | Lightweight |
| Package Type Name | Blister |
| Power Source | Manual |
| Reusability | Reusable |
| Special Feature | Lightweight |
| Target Audience | Boys, Girls, Unisex-Adults, Unisex-Kids |
| Toothbrush Head Shape | Oval |
| UPC | 085178003916 |
| Unit Count | 1 Count |
M**A
The Only Toothbrush I’ve Used for 9–10 Years — Nothing Compares!
I’ve been using RADIUS right-hand toothbrushes for the past 9–10 years, and I honestly can’t imagine switching to anything else. Once you try it, regular toothbrushes just don’t compare. The wide, gentle bristles clean incredibly well while still being soft on gums. My teeth always feel exceptionally clean, and my gums stay healthy with no irritation. The right-hand design fits perfectly and makes brushing feel more natural and controlled. What really keeps me loyal after all these years is the quality and comfort—plus the replaceable heads are a great, sustainable bonus. This is a thoughtfully designed, long-lasting product that truly works. If you’re serious about oral care and want a toothbrush you’ll stick with for years, RADIUS is absolutely worth it. Highly recommend! 🦷✨
V**R
Finally decent toothbrushes!!
I don’t know what’s happened to toothbrushes lately, but it seems like every new one on the market either feels cheap, has bristles that are way too harsh, or just doesn’t clean well. I’ve tried so many brands—everything from drugstore basics to overpriced “designer” brushes—and honestly, they all fell short. That is, until I found the RADIUS Big Brush BPA Free & ADA Accepted toothbrush. Total game-changer. The first thing you notice is the brush head—it’s big, like the name says, but in the best way possible. It covers more surface area, which means fewer strokes to get a thorough clean. And the bristles? Absolute perfection. Soft enough that they don’t shred your gums but firm enough to get rid of plaque. I have sensitive gums, and this is the first brush that leaves my mouth feeling fresh and clean without irritation. What I also love is that it’s BPA-free and eco-friendly. The handle is comfortable to hold and gives you great control, and knowing it’s made from sustainable materials is just the cherry on top. Plus, it’s ADA accepted, which reassures me that it’s not just some random product—it’s legit. I’ve tossed all my other brushes at this point. This is the only toothbrush I trust now. Seriously, if you’re tired of flimsy brushes that don’t get the job done (or worse, hurt your gums), do yourself a favor and try this one. It’s worth every penny. And hey, after all the toothbrushes and everything else I’ve ordered on Amazon, I’m still wondering how I’m not a Vine reviewer yet!
H**Y
Good Gum Cleaner easier on the Hand to Hold
This looked like an Orthodontic Device but once you get used to how to use it, your Teeth and Gums will Thank You. You should not use pressure by the Gum area, just the large size of the Brush does come to the gum area to clean so the size is a helper. So easy to handle, just fits the hand easily. Its says Soft, but I found it almost a Regular.
D**A
It is a great toothbrush. The bristles are designed not to abrade tooth enamel..
I ordered this toothbrush and instead received a soap dish. I returned the soap dish and ordered another brush. Sure enough, I received another soap dish. Amazon instructed me to keep the soap dish.
E**M
Very comfortable and cleans the whole mouth
These toothbrushes really clean your teeth, gums and tongue. The bristles are soft and yet very durable, lasting longer than other toothbrushes. This is my second one (love the lime green). the first lasted 3 months or more and still no warping of the bristles.
O**T
Whole Mouth Clean - Takes Some Getting Used To
It’s our first time using one of these toothbrushes. Saw one on Shark Tank for $100. That’s a bit strap for a brush that doesn’t have tricks. So we opted to try this first. Due to an accident and head injury, teeth and mouth area are sensitive. So a softer brush is needed to avoid pain yet I like the clean feeling of a firmer toothbrush. This brush is definitely softer than a traditional and battery brush but not as soft as child’s. The bristles are firm yet flexible. For a more visual description, it’s like a car wash brush. Size - So you know this is a wide toothbrush. It takes some getting used too. While brushing you literally have a full mouth of toothbrush in there. The handle is hard for me to manage. I can’t seem to find that sweet spot for holding it. It hurts my shoulder too because having to hold this differently, you use more muscles in different places. (The $100 brush has a standard handle. Hmmmm). Time - I’m leaning towards less time to brush. The brush covers more surface including gums. But, without the battery operated spinning brush, you have to focus more on where you’re brushing. For the roof of the mouth, cheeks and tounge, this brush is much nicer and takes less time to cover all the rounded areas inside the mouth. Points for that. I always feel like I’m sawing my tongue with a normal brush. And I lose track of where I brushed to ensure full coverage so I end up redoing which takes time. Comfort - As mentioned above this takes some getting used too. 50 years of using a certain type of toothbrush, the getting used to is noticeable. Pros - Coverage area, softer brush, whole mouth clean feeling. Cons - Handle
R**L
Better brushing
Maximize tooth brushing by hitting all the surfaces
N**L
It's a very big mouthful
8/2023 I wanted a bigger toothbrush head, maybe 3 times the usual size. This is more like 6 times the usual size. It's a very big mouthful. A much bigger head means that to press the bristles into the teeth with the same amount of force as you did with the traditional, little toothbrush, you have to push a little harder with your hand. Theoretically, the chunkier handle should make it easier to deliver force from your hand to the toothbrush head. I like to regulate the pressure that I press on my teeth with the toothbrush. In this Radius toothbrush, the thinner part of the handle flexes to assure the pressure does not exceed a certain amount. But sometimes, I'd have liked to press a little harder. Perhaps the toothbrush is smarter than me, and I should take its advice. Maybe I should always strive to flex the handle to assure I'm always exerting the proper force, as determined by Radius. The handle also has some zig-zags. I'm used to approaching my teeth with an angle determined by my arm and hand. So after a week, I'm still getting used to approaching my teeth with the strange zig-zags of this toothbrush handle. After a week, I'm still getting used to this toothbrush, trying to decide if I'll stick with it or dispose of it. The promise is getting the process, which I was never enthusiastic about, done faster with the toothbrush's huge head. So I'll keep using this toothbrush until I get used to it or give up. Least importantly, if you were ever able to hold a conversation while brushing your teeth with a traditional, little toothbrush, you won't be able to utter a single syllable anymore with a mouthful of this one. 2/2024 I signed up for a subscription, and my 2nd Radius toothbrush should be arriving this month. I'm still using it, no plans on giving it up. It's still a big mouthful. And the default 6-month replacement seems just right; thanks. I'm not sure why I haven't upgraded to an electronic sonar vibrating toothbrush, yet. One of my braincells probably remember their incredibly expensive replacement heads.
M**A
A melhor escova de dentes do Mundo
Descobri-a há uns dez anos, não quero outra. Com 16.000 pelos.
P**O
This shoudl be the standard
Top quality. I can never go back to the small brush junk they give you at the dentist or the one you get at the grocery store...
N**Y
Fast ship, the best toothbrush out there, period.
THE only way to brush your teeth. The best!
M**D
Top Zahnbürste!
Top Zahnbürste! Da kann die Konkurrenz was von lernen
C**N
Muy ancho,y suave
Siento q no daña el esmalte,muy suave y al ser tan ancho llega a todos sitios
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