... sport training Relate name: Elastic Velcro strap, elastic band, elastic cinch strap, elastic arm band, elastic wrist band elastic Velcro band, OutlinePolyester and ... features and usage:1) Made of Polyester and rubber, elastic loop band, sewing small section velcro hook for easier ... design and customize the elastic band with other material such as buckle, leather, cotton, PVC, rubber and so on, ...