Product introduction: solid stainless steel 5 cr13 material. Each key clip with D1 metal key chain each product are oxidation treatment on the other details such as fixed the keys we add a silicone ring is very good solve the problem of key shaking and less friction noise freely of course also do not affect you pick up to collect keys to open the door. This fit into any standard door lock key in everyday life not burdensome to carry and the size of the product is only one key size. Increase the bottle opener key clip in practical use of leverage and configure the three different size of screwdriver including basic glasses small screwdriver. Also includes a nail file nail cleaning thread cutter or even a pair of tweezers etc. Function characteristics: A bottle opener; Glasses with a screwdriver; Medium with a screwdriver; Large screwdriver; Nail file; Fingernails clean; Thread milling cutter tweezers etc.