ProMounds Junior Practice Mound with Clay Artificial Turf • Made of high-density foam and rubberized armor. • Portable, durable and lightweight. • Designed with Promounds innovative skid-proof bottom; will not damage gym floors. • We include a regulation size pitching rubber attached to every mound. • Combination of the foam core and the rubber armor allows the pitching mound to be both lightweight and strong. • Can be used by left-handed and right-handed pitchers. • Spike-resistant turf.