【Supports Precise Training and Accurate Counting】 The PROIRON jump rope accurately counts your jumps and displays weight, rotations, time, and calories burned. Equipped with a dual-hole magnetic sensor, it allows for countdown and timer settings as needed. 【Smooth Jumps and Easy Rope Length Adjustment】 This jump rope includes bearings that enable fluid jumps and prevent rope tangling. The rope is 3m long and can be adjusted without cutting. 【Switchable to Air Jump Rope, Ideal for Indoor and Outdoor Use】 The PROIRON air jump rope is an item that combines a skipping rope and weight balls. You can freely switch between rope mode and cordless mode, allowing you to use it anywhere. 【Equipped with Removable Weighted Steel and Comfortable Handles】 This jump rope features removable weight pieces to accommodate the needs of beginners to advanced users. Adding weight doubles the fat-burning effect. The grips use food-grade silicone, providing a comfortable and non-slip design. Y048