Come and see our amazing products. Come with built in counter which allow you to input your weight for you to track the time and rotations and how much calories you burned. The tiny screen which displays on this fitness jump rope crossfit shows Timer, Weight, Calorie and Circles is useful to monitor your exercising progress. It is also embedded with a sound effect when you reach to the exercise goal you set. Pls confirm with us about the packing info, stock color and exact production time before placing your order.