?? Challenge and train your children’s physical coordination and balance, keep them active and away from electronic devices and TV, and play with fun. | ?? The Rocket design is not only unique and creative but also enhances the durability of the connection between the rod and the UFO-like wheel which is featured with built-in LED, no battery or charging needed by using Electromagnetic Induction. | ?? Eco-friendly plastic + metal spring, light weight, foldable w/ 2 parts, easy to assemble, full elasticity of spring is functioning like a cushion, reduces reaction force, provides better speed control over than a soft rope or stiff rod, prevents potential to be broken or bent, allocates the weight evenly while skipping. | ?? Ankle ring is adjustable and covered with foam for softness and protection, designed to withstand hours of intense play. | ?? Easy to master, OK for indoor or outdoor, recommended for age 5+, great exercise for adults too, great fun together.