This grappling hook is made of thick Stainless Steel ,heavy and sturdy Four claw with strong and non-slip saw-tooth, can support up to 350 kilograms -770 lbs Fordable Design, and a green bag included ,easy to carry and open and close Black nylon cord,long and strong SAFETY NOTICE】: This grappling hook set is designed for GENERAL OUTDOOR USE such as retrieving items, camping setups, or light tree work. It is NOT designed, tested, or certified for rock climbing, mountaineering, or any life-support activities.