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🚽 Upgrade your throne with silent luxury and effortless hygiene!
The Mass Dynamic D-Shape Toilet Seat is a premium, UK-standard fit designed for D-shaped pans with adjustable hinges. Crafted from durable urea-formaldehyde, it features a soft-close mechanism to prevent slamming, a quick-release button for easy cleaning, and a top-fix installation system that saves time and effort. Its non-slip buffers ensure stability, making it a practical yet stylish upgrade for any modern bathroom.


| ASIN | B08Q3GCQKN |
| Best Sellers Rank | 702 in DIY & Tools ( See Top 100 in DIY & Tools ) 10 in Toilet Seats |
| Brand | MASS DYNAMIC |
| Colour | White |
| Country of Origin | China |
| Customer Reviews | 4.2 4.2 out of 5 stars (4,809) |
| Included Components | 360 Adjustable stainless hinges |
| Item Dimensions L x W | 45L x 36W centimetres |
| Item Type Name | Toilet Seats |
| Item Weight | 2.74 Kilograms |
| Manufacturer | MASS DYNAMIC |
| Material | Duroplast |
| Model Number | 1603.1 |
| Operation Mode | Manual |
| Part Number | 1603.1 |
| Shape | D-Shaped |
| Style | D-Shape Signature |
| Unit Count | 1.0 count |
R**Y
Good fit
Marvellous ,good quality and good price.
G**N
Overall ok - plastic seat doesn't feel very sturdy, pads don't sit flat to toilet.
First impressions - It doesn't feel as sturdy as my old toilet seat, it's just normal plastic and feels less hard wearing - The top fitting connectors were so simple to install. A massive upgrade from my old underneath fittings which required me to reach under and around to tighten them - There are 4 underneath pads on the seat and the front 2 sit flat to the toilet rim but the back 2 are slightly raised and don't touch the toilet. This could potentially be a problem in future with the seat cracking with the constant use and pressing down on it * - The soft close fitting are what you'd expect. Silent, but slow. Overall ok, some concerns about the plastic quality and the pads not sitting flat to the seat but first few uses have been fine. It has only been used for just a few hours at the time of writing this review so I may come back and update this in a few months. * I used my old toilet seat pads to help with this by trimming down the old pad and then using some bathroom silicone to glue the old pad to the new to create a thicker pad. The back ones now sit flat to the seat but the front ones are marginally higher. It has taken the pressure off the back hinge which should reduce any potentially cracking but I think I will make the front ones slightly thicker using the old pads too so theyre level. I've added pictures to show the difference.
A**E
Very good value
Excellent product easy to fit. Amazing value for the money.
N**E
Quick, easy and no slip/movement if you pick the right fixing
Many reviews say the toilet seat moves while others say it doesn’t. I’d like to point out, that the package for this toilet seat contains 2 different tripe of fixings you can use. The white plastic one is flimsy and won’t securely hold down the toilet seat and this is the fixing on our old toilet seat that caused it to move relentlessly which is why we needed a replacement. We used the black rubber ones and screwed it tightly and it wouldn’t budge. Of course we’d need more time to say that it’s solidly sturdy but so far it’s doing amazing. Using the black fixing was simple and easy compared to the white one (so I’d really advise you to pick the black rubber fixing when installing). The seat is a soft close, does take a while to close but we’re not bothered. The quick release button makes it easy to clean, no extra fuss. Overall an amazing and well needed replacement.
N**.
The fixing methods supplied DO NOT WORK!!
I purchased two of these, and firstly I’d like say that this toilet seat is of very good quality, and the soft close is also good. However, I will very quickly follow that compliment with the problem I encountered. It is IMPOSSIBLE to securely attach the seat to the lavatory pan without it wobbling using the connection materials supplied. Now, I’m not stupid. I can read and understand instructions and am quite adept at straightforward DIY. I struggled for over an hour to securely attach the toilet seat, trying the different fixing methods provided, effing and jeffing without any success 🤬 Not one to be defeated, I ended up using some of the fittings from the old seat and some rubber washers to achieve a secure, no-wobble connection. I took this knowledge with me into the next bathroom and fitted the second toilet seat inside 10 minutes! They both look great and are working well now, but please be aware of this issue when buying.
A**Z
Perfect fitting.
Perfect fit, leave a little loose to adjust so your happy with final position ,then tighten up. Not flimsy or cheap as others have said.
F**K
easy to fixed
however, it’s prone to get loose on the hinge and there’s no easy way to tighten.
T**E
Terrific Toilet Seat
Took ages to find a square toilet seat that would fit our RAK Ceramic Toilet. didn't know if it would be the right shape but took a chance and so glad I did. Perfect size shape and super build quality. The soft close action is a bonus and works for both the seat and the lid...no more waking the family in the middle of the night. Comes with comprehensive instructions and 2 sets of installation screws that work with both normal and close coupled toilet basins. HIGHLY recommend this product
A**O
Facile da montare , misura giusta
C**N
Très bon produit conforme à la description
C**N
Super
L**E
This product was great, but 2cm too short, do you have another option I can use?
P**O
Il prodotto è di qualità medio bassa, realizzato in polipropilene con spessore appena sufficiente per il suo impiego. Nel mio caso l’oggetto è arrivato danneggiato, probabilmente sia a causa dell’imballo insufficiente che della bassa qualità realizzativa. Non ne consiglio l’acquisto, meglio optare per prodotti più costosi ma durevoli.
Trustpilot
1 week ago
3 days ago