The lightest, most durable baseball pitching mounds on the market. Portolite pitching mounds give the pitcher the feel of a regulation baseball mound while also allowing field crews the ability to move it with ease. Each baseball pitching mound is designed with a full body high-performance poly-protected resilient core with fiberglass reinforcement for a solid, no bounce, yet cushioned baseball mound that reduces knee and ankle strain. Portolite pitching mounds are covered with the highest quality turf available in Clay or Green colors. Portolite simulated pitching rubbers last ten times as long and also have a hidden wear pad underneath the turf immediately in front of the pitching rubber. Built with gentle slopes and tapered edges to give the pitcher the highest level of comfort. Stride off Game Mounds are available in 4in and 6in sizes to meet every youth age level.