Convert your field to a baseball field in just seconds with ProMounds Portable Game Mounds. The ProMounds Bronco Game mound is perfect for any youth league. Throw from the official size rubber and land on the dirt. This mound is constructed from lightweight, high density foam, PRAT (ProMounds Rubber Armor Technology), and spike resistant artificial turf. The high density foam creates a durable, lightweight design. The PRAT technology seals the foam and will not scratch gym floors. The spike resistant artificial turf completes the mound giving you a real game feel. Mound comes with clay turf.