feature: The adjustable wrist strap is made of sturdy and durable material. The hard steel structure is very suitable for trees, walls and rock climbing. Increase safety and stability when you need additional support. Easy to store and travel, you can easily store it in your backpack when you are out exploring. specification: Material: Stainless steel Colour: Black Number of teeth: 4 teeth Size: 11.5x30x7cm Package Included: