About Product:The steel is solid and can bear up to about 500 kilograms. It is generally used for outdoor mountaineering, and can also be used for rock climbing, swing, pet chain and other purposes. Spring hook in addition to the above purposes, it can also be used in the following fields: the spring type is equipped with a spring at one end of the flap, and the ordinary type is not equipped with a spring. Cooperate with rope, Ascender, eight rings, bandlet, etc. In the field of fire protection, spring hook is mainly used to protect firefighters from falling during operation and to protect the safety of the project.