Material Safe Material Children's jump ropes are made of safe, nontoxic and odorless materials. The handle is soft and nonslip for a comfortable grip. The rope is made of high quality cotton and elastic rope, which does not hurt much when struck on certain parts of the body.Easily adjustable The length can be easily adjusted according to individual needs of the jump rope, ideal for teenagers and children.Funny counting The jump rope has an automatic counting function, which gives children a lot of fun when playing sports. Remark: Hold the counting handle with your right hand to count correctly.Improvement Health Improvement Jumping is an aerobic fat burning exercise that can accelerate blood circulation and improve cardiopulmonary function.Gift for children The rope can be used as a play tool for your children, makes them have lots of fun, and promotes children's ability and endurance in a playful way.