NatureRocks™ climbing boulders provide a dynamic and authentic climbing experience. Hand-painted rust to create a realistic sandstone look. Constructed of glass fiber reinforced concrete for durability & longevity. Plastic coating protects the surface and prevents the penetration of spray paint, marking pens, chemical attacks, crayons and lipstick. Installation instructions included. Five year warranty on structure. 5'H x 6.5'L x 4.5'W above finished safety surface (4' actual height). 2350 lbs. Shipped freight. Made in the USA.