This portable pad is built on a steel platform base with a natural gum rubber playing surface with a dark gray durable finish that resists wear and tear. The 4æ by 1/2æ thick pad is fitted with a 22æ leg strap and fits snug to your leg for anywhere practice and warm up. The base of the pad also has a non-skid rubber base that allows for table top practice in addition to the leg strap. And best of all, this pad fits right into your back pocket so you have it where and whenever you need it.