3 HANDY SIZES: This 5-piece dual buckle carabiner set comes in 3 handy sizes for a variety of uses. TWO ENDS FOR VERSATILITY: Made from lightweight aluminium, they are slim and sturdy and have two ends to work with, making them highly versatile. MULTIFUNCTION: The carabiners are ideal for a wide range of lightweight uses, such as keyrings, attaching items to backpacks or camping. PLEASE NOTE: they are not suitable for climbing, hammocks or other heavyweight applications!.