Comfortable curved grip; Not rubbing your hands, the handle is designed according to human engineering; 360 degree rotation, flexible; High-speed rotation without entanglement, smoother rotating; Upgraded chip, intelligent counting; Automatic counting of calories, laps and distance data; Environmentally friendly, wear-resistant and durable PVC rope body, low wind resistance. Specification: Material: ABS+PVC Color: Blue Product size: 180mm*35mm*28mm/7.09*1.38*1.10" Applicable scenario: fitness equipment, fitness and bodybuilding, sports Adjustment method: Estimate the required length and thread the rope into the hole at the top of the shaft; Reversely penetrate into the hole next to it; Tighten the rope and cut off the excess rope. Note: There may be slight size deviations due to manual measurement, different measuring methods and tools. The picture may not reflect the actual color of the item because of different photographing light, angle and display monitor.