1. It is made of high strength plastic,it’s durable, the ribbon is made of high strength polypropylene fiber, the rope is made of PE polyethylene, and it can bear a lot of tension. 2. High density polyethylene with smooth surface, anti aging, no air leakage and strong buoyancy. 3. The appearance is streamline radian,when swimming,the resistance of water is small. 4. There are 3 handlebars.Anti slip design to prevent slipping effectively