New Other Schutt Youth 4 Sided Hollywood Style professional Pitching Rubber, Baseball Base Size:OSFA muscle fatigue in quads hamstrings and Ryl Silver muscle fatigue in quads hamstrings and weak sore joints Thermal compression retains heat for increased oxygen consumption that aids in raising lactic acid thresholds Thigh sleeve incorporates the benefits of kinesiology tape and compression products into kinetic panels Kinetic paneling increases stability and maximizes blood flow to reduce inflammation and pain Fits left or right thigh Contains natural rubber latex Do not apply over open wounds Note: This product is not a substitute for medical care for both style and safety Nylon spandex running brief prevents chafing Provides zippered key pocket on the back and gel pockets on each hip Low maintenance ownership machine wash and dry Hollywood dual stanchion removable pitching rubber for baseball and softball fields Includes ground anchor stanchion and pitching rubber Made of durable molded rubber Youth size: 18 x 4 inches Schutt is the official base supplier to Major League Baseball