Total height nearly 2.5 ft, 28" outside diameter x 14" inside diameter x 8" thick Teaches players to adjust their angle in pursuit and wrap up in open field Teach open field tackling without bodies Helps reduce injuries Made of 9 lb. rebond foam, 22 oz. coated vinyl center and outside, 19 oz. coated vinyl on faces of wheel Teaches players to adjust their angle of pursuitTeaches open field tackling and reducing injuries without the use of other playersTeaches players to wrap up in open field 22 oz. coated vinyl in center hole and outside surface19 oz. coated vinyl on outside faces of wheel