The 30pcs adjustable screw kit is designed to replace the speed jump rope cables, offering versatility for most speed jump ropes. It allows for quick and easy adjustments to the rope length, ensuring a customized and comfortable jumping experience. Made with high-quality materials, this kit provides durability and reliability for consistent use during speed rope workouts. Keep your speed jump rope in optimal condition with these convenient replacement parts. Screws are lightweight, compact, and easy to carry around, allowing you to adjust your jump rope Feature: Adjustable Material: Metal Type: Jump Rope Parts & Accessories Colour:Silver Size:Inner hole 3.5mm Package Contents: 30 x screw Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.