Description: 【Quality material】: Crafted from quality aluminum alloy, this zip line pulley is designed to wear resistant and boasts a strong load bearing capacity, making it a great accessory for your climbing adventures 【Reliable design】: Featuring a double bearing design, this climbing cable pulley offers a pulling force of 30 KN, with each pulley supporting up to 15 KN. It ensures good load capacity and reliability for your outdoor activities 【Easy to use】: The 30kn tandem speed double pulley is designed for durability and ease of use. It evenly distributes force when attaching ropes, providing stability for long distance traversing 【Compact size】: Measuring 10.6 cmx8.8 cmx2.8 cm/4.17 inchx3.46 inchx1.10 inch, this hitch pulley is compact and lightweight yet capable of handling heavy loads. It's portable and practical for outdoor enthusiasts who enjoy climbing activities 【Versatile application】: Ideal for various scenarios such as backyard , mountaineering, rock climbing, and other outdoor sports, this pulley wheel is nice for adventurers seeking reliable gear in diverse environments Specification: Material: Aluminum Alloy Size Chart: 10.6cmx8.8cmx2.8cm/4.17inchx3.46inchx1.10inch Package Includes: 1 Climbing Single Pulley Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.