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

The design works well to engage and disengage the kickdown lever. Construction is generally good but there are potential point of corrosion in that there are parts make of ferrous metal, especially the spring that is the heart of the mechanism. I disassemble the doorstops and put grease on the spring and whatever parts I could reach. Since I'll be using these on outdoor gates, it will help keep them from rusting out but I expect they will have a finite life. Otherwise, for the price they are good.

Now, getting installed was a little tricky for me but I was able to do it! They are able to hold the doors just fine! We have a garage door I wanted held open for when we bring in groceries. But if any windows are open or doors anywhere else on main floor the door slams shut with a lot of force, having this installed has prevented that from happening. It was totally needed to pre drill through the metal door but I went on the small side so the screw would catch and stay and I used lock tight. Then I put one on my bedroom door, I have french doors and when the one is open it will always half close, I pre drilled the wood and this was easy to put on and it works totally well! I used these only for holding doors open, and not for keep a door from opening in case someone tried pushing in my door. So there is that. What I love about these after they were installed is that I use my foot to kick it down into place and then I just step on the lever that went with it and it pops back up! I don't have to get under it and try to prop it up, just push down and it goes! really easy to use when installed! My rating 5 star - I really like this item, really made me go wow you should get this 4 star- I like this item and it is fine, but didn't go wow you need this 3 star- this item is alright but has a few flaws 2 star- quiet a few flaws I would totally go somewhere else 1 star- junk no good don't waste your time.

Overall, it was great. However, the screws that were provide was so weak. I broke 3 of 3 that I tried to use and got different screws. Everything else was fine.

Easy to install. Matched the existing holes. Worked great for a few months, then stopped working. A few drops of oil where the lever meets the leg, and they work like new again.

Tried these at our church and a senior center I work at. People don't know how to use them without being taught. If door is backed up against a wall, these doorstops cannot handle the pressure of someone stepping on lever to make them "spring up", so you have to be careful to teach people to put the stop down just short of wall or door stop will be in a bind. They fall apart, pin comes out and cleat comes off, or spring pops out making it unusable after just a few weeks! Or tab breaks from being made of cheap "pot metal" when pushing foot on it. We bought 6 or more of these and installed them on 6 doors and 5 broke within 6 weeks of normal use. Nice idea, to not have to bend over to release a door stop, but very very poor quality.