Made of aluminium alloy, which is very durable and lightweight, not easy to deform. Self-locking carabiner, convenient for hanging water bottle, camping lantern, etc. It is very easy to carry. Great accessory for outdoor camping, hiking, travel, etc. Features - Color: Red, Green, Blue, Gold. - Material: Aluminium alloy. - Size: About 6.00X4.00X2.50 cm/2.36X1.57X0.98 in. - Made of quality aluminum alloy, sturdy and durable. - Bright colors will attract your attention easily and highly reflective in sunshine. It's also easy to remove. - It also can use as a rope hanger hook to something at home or outdoor. - Great for tent use, camping, hiking, backpacking and climbing, etc. - Creative design makes these buckles more chic and prevalent.