Features: Allows you to change the mode between Rope Jump and Cordless Jump. Aaccurate counter with electronic chips,it can calculate your jumping number,kilometer,mile and calories. 3.0oz small metal weight block in each handle to consume more calories.Or you can take them out for your needs. Premium bearings ensure smooth and rapid 360rotation,effectively avoids twisting or coiling up. Comfortable foam handle for good grip.And premium rubber rope for durability. 9.2ft rope length is easy to adjust and is easy to use. No age limitation.Suitable for young,old,adult and children. Specification: Color: Green / Pink (optional) Material: Rubber + Plastic + Steel Rope length: 2.8 m / 9.2 ft Rope diameter: 0.6 cm / 0.2 in Ball diameter: 6.5 cm / 2.6 in Handle length: 18 cm / 7.1 in Unit weight block: approx. 84 g / 3.0 oz Battery: 1* LR44 battery (included) Package weight: approx. 420 g / 14.8 oz Package List: 1* Jumping Rope 2* Weight Block 2* Short Rope with Ball