NatureRocks™ climbing boulders provide a dynamic and authentic climbing experience. Hand-painted dark gray to create a realistic granite 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. 3'H x 5.5'L x 4.5'W above finished safety surface (4' actual height). 1350 lbs. Shipped freight. Made in the USA.