Made of hard aluminum alloy, extremely hard. It adopts D-type aluminum alloy polishing treatment, which is waterproof, wear-resistant, high-strength and durable.
It can be hung on backpacks, key rings, water bottles and everything else you need, and can be used for tents, ropes, etc., stylish and practical, and non-inferior comparable! Special instructions for safety reasons are not recommended for mountaineering, rock climbing, ice climbing and high-altitude games. Length: 81mm Diameter: 7mm Width: 41mm (wide) Weight: 22 grams Material: aluminum alloy