Light weight D shaped Carabiner key ring with a spring loaded gate. A great way to organize keys and other small items. Makes a great accessory for anyone that appreciates functionability. Clip it on jeans, backpack, purse or anywhere else. This item is meant to be an accessory only and is NOT a load bearing device. Includes split ring for keys. 12 pack includes 2 silver, 2 red, 2 green, 2 blue, 2 black, and 2 purple. Length 55mm width 29mm Diameter 5mm Weight 9 grams each. Made from aluminum metal alloy.