The jump rope can help you exercise effectively, a great fitness exercise for all ages and people. Features: Bold PVC with wire rope integrated, durable and reliable, effectively improve your jump rope speed. Low-noise 360 rotation with dust-proof bearing, durable and stable oscillation, no string required. Chip counter intelligent with four modes, easy to count your sports and make your exercise scientific. Scientific design with lightweight ergonomic handles can improve your comfort when doing sports. Use the rope jump both ways, use the cordless rope at home or use the steel wire rope in the open air. Features: Model:model A/modelB (optional) Color: pink/gray/blue/green (optional) String material: PVC + steel Handle material: ABS Model A String length: 30 cm / 11.8 inch Ball diameter: 3.5cm/1.4in Handle Size: 18*3.5cm/7.1*1.4in Package Size: 20.5*16.5cm/8.1*6.5in Package Weight: 103g/3.6oz Model B: String length: 2.8 m / 9.2 ft Rope diameter: 4 mm Handle size: 18*3.5cm/7.1*1.4in Package Size: 20.5 * 16.5cm / 8.1 * 6.5in Package weight: 215g/7.6oz Package List: 1* Jump Rope ,