these work great, I use them to lock up the guns when the nephews and neice come over. these go on, the guns and ammo get locked in the steel box, the box goes in the attic. The key stays with me. the kids are young, too young to go "Exploring" the house but old enough to maybe wanna be curious about a gun if they found one in a drawer. The attic works because they are too small to grab the rope to pull the steps down. when they get older, ill have to buy a permanent safe... like a real type safe...!!