Best-selling Black Outdoor Emergency Survival Multi-function Carabiners With Knife+Screwdriver+Buckle For Mountain Climbing Material:stainless steel, Handle Material:zinc alloy spray paint Open Length:18 cm, Close Length:11 cm, Width:6 cm, Thickness:2.5 mm Weight:70 gram Wearable and easily attachable to backpacks, key rings, belt straps, etc Great for camping, mountaineering, hiking,riding,fishing and other activities.