Tumbl Trak™ XtremeRecommended for gyms with power tumblers or cheerleaders who tumble in shoes, the Xtreme Tumbl Trak includes a layer of vinyl sewn to the top of the black tramp bed, adding tension and tighter rebound to the spring of the bed, while also improving durability for high use programs. Equipment Features: 4 inch wide white line down the middle of the bed for visual coordination. Clean, soft sole, indoor shoes can be used on this bed, making it ideal for