ProMounds Fiberglass Pitching mound is made with high quality fiberglass, creating a top-of-the-line mound that is made to last. The mound features On Deck Sports, spike resistant artificial turf, and a built-in pitching rubber. The turf paired with the hollow fiberglass body of the mound creates a real game feel. The fiberglass mound is a heavier option compared to our ProMounds foam game mounds while offering the same unique functionality. (MP4001C)