ealistic bowling action with light weight equipment. The pins are regulation size (6 oz.), made of molded, resilient polyethylene, and weighted with 1-1/2 oz. of sand ballast for easy set-up. The bowling ball is regulation size, made of hollow rubber, and weighs2.5 lbs. The complete set comes with 10 pins, rubber bowling ball, set-up pattern sheet and score pad. Keep the ball and pins to a confined area with this backstop. Measures 4’L x 1’W. Made of powder-coated steel. Backstop sold separately