HIGH QUALITY MATERIAL: This climbing pulley is constructed with premium aluminum alloy, high strength and durable. SAFE AND RELIABLE: This pulley can withstand a pulling force of about 1000 kg, the side flanges prevent the rope from skidding, extremely reliable to ensure your safety in climbing. REDUCE FRICTION: Fine polishing ensures a smooth surface, allowing smooth and fast rotation to greatly reduce friction. APPLICABLE ROPES: The single swivel pulley is suitable for 8-13 mm ropes. WIDE RANGE OF APPLICATIONS: The pulley wheel is perfect for climbing. It also excels in other uses such as transporting, hauling, etc.