Review on Maycom Retro Style Simple Strong Carabiner Shape Keychain Key Chain Ring Keyring Keyfob Key Holder (Copper) by Paul Rose

I bought this for my son in law who wears them all the time and keeps buying new ones. At first it seemed great, solid, with a nice design, but it doesn't work well. He first lost his keys when he was 30 when he clipped himself to the belt loop of his trousers. Is it a spring or maybe the clip design is wrong, not low enough to snap in and go without worry. Went to the local dealership to get these solid, deeper designs. He is handicapped and needs someone who jumps well and has a little bit of depth.