specification: Item Type: Ropeless Skipping_x000D_Power Supply: 1pc LR44 Button Battery (Not Include battery)_x000D_The Correct Posture for Skipping Rope: Stand naturally with both ankles slightly staggered, close to body from upper back, forearms naturally droop, palms facing or downward, swinging rope with wrist force, remember not to use heel or sole of foot to touch ground_x000D_Correct Position of Skipping Rope: Front of body: Approx. 15cm/5.9in _x000D_How to choose Right Length of Rope: Beginners can adjust length of rope according to their height. _x000D_The specific method: Step on the rope with your feet together, hold the handle with both hands and pull until you reach foot, mark the position to be adjusted, then untie the rope and pull out the rope body to adjust to marked position_x000D_Scope of Application: Widely used in offices, bedrooms, living rooms and outdoors_x000D_Material: ABS+PVC Features: 1ABS handle, strong and wear?resistant, can be used for a long time. Bearing design. 2Bearing design to prevent rope winding, smart chip, more accurate counting. 3Transparent PVC rope, light and convenient, strong and durable, and feel more comfortable. 4Suitable for all kinds of people, suitable for indoor sports and outdoor sports. 5Rope length can be adjusted freely, and simple rope head design is convenient to adjust length. PackageList: 2 x Ropeless Skipping Ropes(1 Pair