Features: Big used on the upper limb of the Bows, small used on the lower limb of the Bows. Stepping on the winding rope with both feet and lift the Bows handle vertically upward, while also attaching or removing the bowstring. Designs for archer of all level, our Bowstring Changer simplifies the stringing process, making it simple for both beginner and professional. Whether you're practicing at the ranges or preparing for a hunting trip, our Bowstring Changer is the perfect to quickly and easily string your Bows, saving time and effort. Elevates your Archeries game with our multifunctional Bowstring Changer, suitable for various bows, providing a great stringing experience everytimes. Specifications: Materials: Rubber Color: Redness/Orange/Yellow/Blue/Green Size: as shown in the picture Package Includes: 1pc Bows String Install Rope note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.