Product Category:Descent 1. Magnesium-aluminum alloy, high strength, durable, light weight, easy to carry 2. The hanging point is designed as a triangle in general, and the force is even when hanging. 3. Internal shaft design for 360 degree rotation for enhanced direction change flexibility 4. Material: magnesium alloy 5. Weight: 138g 6. Features: portable, lightweight, high strength 7. Size: 11X5.5cm 8. Applicable rope: 8-13 mm diameter rope 9. Maximum pulling force: 30KN 10. Scope of application: mountaineering, rock climbing, caving work, fire rescue aerial yoga, etc.