ProMounds "Major League Style" Pitching Game Mound - Clay colored Turf ProMounds Clay Major League Pitching Mound, constructed from high density foam, PART (ProMounds Rubber Armor Technology) and spike resistant artificial turf. Convert any field into baseball field in minutes. Throw from the rubber and land on the mound. Official size rubber. Durable, lightweight and portable, can be used indoors or outdoors for practices or games. Official Little League mound specification, not designed for use with metal cleats. Model No.: MP3003C. Dimensions: 6H x 5W x 83L. Weight: 70 lbs