I use it as a key ring spare carabiners on my backpack comes in handy a lot

This is a very strong and durable product just what i needed to hold my keys i didnt want really cheap carabiners these are still cheap but they are a lot less prone to breaking and these come with the key rings i like that fact that the spring opener can screw closed and lock so there is no chance of any of my keys coming off while it is it my pocket or on my belt loop

Sturdy bought for key rings works great no i wouldnt go climbing half dome with them or anything but if you have a lot of keys to keep track of or doors that need secured but not necessarily locked these will do the job

I carry my car keys on one and i like that i dont have to worry about the carabiner popping open and getting lost