Carabeaners are smooth shiny polished finished, good accessory for daily life, camping, hiking, backpacking or other outdoor activities. Multi-function tool. You can use these carabiners on your backpack or keep your gear off the ground (water bottle, travel gear, camera stuff or other indoor outdoor supplies) **Not recommended for climbing or heavy duty safety equipment. ** Features: Lenth: 3" . Maximum load: 66 lb. Material: Aircraft aluminium. Color: Black Process: Electroplated paint. Package includes: 12pcs Carabiner clip,12pcs keyrings Note : It is not recommended to be used in mountaineering, rock climbing, ice climbing and high-altitude games for your safety. Not recommended for heavy duty work?swing, hammock, punching bag, etc.