Description:Durable Material: The climbing wheel is made of alloy, which is rust-proof, durable, lightweight, ensuring a long service life. Smooth Running: This side swing is equipped with high-quality bearings to reduce friction, saving a lot of labor. Fit Different Occasions: This single puck is designed for rock climbing, tree climbing, pulling, dragging, rescue, etc. Precision Manufacturing: The climbing wheel fits paracord with a maximum diameter of 12mm, suitable for most types of climbing ropes. Easy Installation: The climbing wheel is designed with a large hole to fix the carabiner, easy to install and disassemble. Specification:Material: Alloy. Load Capacity: Approx. 20KN/4500lbs.Max. Rope Diameter: Approx. 12mm/0.47 inch. Size (L x W): Approx. 7.6 x 5.5 cm / 2.99 x 2.17 in. Color: black, purple. Note:There may be several color distortions due to different computer resolutions. There may be a slight error due to different manual measurements. Proper training (knowledge of safety techniques and measures) is necessary before using the tools. Improper use or improper maintenance can cause serious accidents, even fatalities. Read carefully or learn enough knowledge before use. Package Included:1:1pc type Climbing wheel. Type 2:2 pcs. Climbing discs.