Practice like a Pro with Portolite’s Junior Practice Pitching Mound. Portolite’s Junior Mound is perfect for any backyard bullpen, indoor training facility, or gymnasium. The full body, high performance poly protected resilient core gives pitchers a solid yet cushioned landing area reducing knee and ankle strain. Your young pitchers will love the feel of the mound and their parents will love the price. Made of high-density foam and encapsulated in Super Lightweight Fiberglass for strength and durability Super soft plastics will grip any gym floor Perfect for 5-10 years old 10 Year Warranty Made in the USA SHIPS IN 10-14 Days