High quality material: food grade PVC material, tangle-free adjustable cord, ABS non-slip handle. Jump rope length: 2.9 m, wireless jump rope length: 17 cm. Built-in premium 360 professional ball bearing for smooth and effortless spin. Multi-function Electronic Rope: Equipped with timer, calorie counter and jump counter, accurate 4-button jump count helps lose weight and keep fit. When you reach the set exercise target, the skipping rope will beep automatically. Suitable for children adults of all family members. Notes: No need to shut down manually, it will shut down automatically after 5 minutes in the static state. Dual-mode skipping rope: With the creative design, you can change the mode between skipping rope and battery mode (using the short ball ropes). . In cordless mode, you can enjoy the jump wherever you want. In addition, this cordless mode prevents children from tripping off the rope, and it can be used conveniently without taking up too much space. More convenient and time-saving. Thanks to our adjustable mechanism, this 9-foot anti-twist skipping rope can be used by anyone - including very tall or small athletes, adults and children. Cordless skipping rope is never a mess, skipping rope easily and efficiently strengthens your body, loses weight and increases your endurance. Product Information Material: ABS