1Suitable for mountaineering and rock climbing, altitude work, rapid descent, exploratory heading and other outdoor sports 2Made of 7075 aviation aluminum material, it is durable and light weight. 3Using advanced technology, simple operation, wide application, smooth surface, reduce the wear of the rope and other accessories. 4The maximum load is about 2500kg, not easy to break. 53 different colors for you to choose, meet your different needs.