How do you know how high to install it?

These will last for a while in a low traffic area where everyone is "nice" to them. Otherwise, in public or commercial setting they will fail, break, etc., so I no longer recommend this product. If you choose to buy and install, please follow the directions provided. In our case we had other door stops previously and put these at the same height. Open it and see how far off the ground the surface is where you put the screws.

Rubber worn down, can't find a replacement. Can anyone help? This item will be worthless if tip Can't be replace

You are fortunate that you got to use yours long enough for the rubber to wear down. The metal parts of ours broke, spring popped out, etc., making ours useless within the first 60 days in a church setting and a senior center setting. I don't know where to get new rubber tips, but would not buy this product again for our needs. People just don't understand how to work them without stepping too hard on the lever and breaking it off. The key is to push door back a bit to relieve pressure on these and THEN step gently on lever to make door stop come back up. We couldn't reach all who used these doors in a public place, to give them "Orientation and instruction" so ours are useless.

Is this gate strong in magnetic force? Can we close the door for children and pets?

The magnetic force is very strong. I have to work hard to close the door. My child can't close the door, so I don't worry about the child crushing his fingers when he accidentally closes the door

Does this door stopper work? Can it keep the door open?

Purchased a few just to confirm they would Work on our commercial office doors, well these stoppers work great and easy to install, I need to purchase a dozen more. Good Product would recommend

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🚪 Keep your doors—and your space—on your terms.

BUILT TO LAST - Premium aluminum and rubber ensure durability for heavy doors.
UNIVERSAL GRIP - Works flawlessly on tile, carpet, wood, concrete, and more.
SILENT STABILITY - Anti-collision design protects walls and floors quietly.
CUSTOMIZABLE HOLD - Adjust the rubber tip for perfect door positioning every time.
EFFORTLESS CONTROL - Step to engage, step to release—door holding made seamless.

GroTheory’s 3 Pack 4-inch Kickdown Door Stoppers combine heavy-duty aluminum construction with a non-slip, adjustable rubber base to securely hold doors open on any floor type. Designed for silent, stable use, these modern floor-mounted stoppers offer effortless step-to-release functionality and long-lasting durability, perfect for both residential and commercial spaces.

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€ 58.74

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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Brand	GroTheory
Mounting Type	Floor Mount
Material	Aluminum
Color	Stain Nickel
Style	modern
Finish Type	rubber
Number of Pieces	3
Manufacturer	GroTheory
UPC	754407085947
Item Weight	10.5 ounces
Package Dimensions	5.24 x 4.21 x 1.73 inches
Size	Large
Finish	rubber
Included Components	heavy duty door stop, screws
Batteries Included?	No
Batteries Required?	No

GroTheory 3 Pack Door Stoppers, 4 inch Kickdown Door Stops, Heavy Duty Door Stoppers for Bottom of Door, Adjustable Metal Door Kick Stand Floor and Release

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