Features: Made of high-quality plastic, long service life. Smooth surface without burrs, prevent the pulley from being scratched during disassembly. Small and convenient, it is easy to disassemble and assemble the auxiliary belt, labor-saving to use. Installation and removal tools. The tool is placed on a pulley, and the pulley is turned to slide-in or slide-out elastic -fit belt without damage. Easily installs and removes all ribbed stretch fit belts. Helps prevent damage to belt or pulley during removal or installation. Specifications: Material:ABS Quantity:1Set(2pcs),2Set(4pcs) Note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1Set or 2Set Belt Installer Tool