Editorial Review The Class III Ball Mount a 2 drop or may be inverted for a 1 rise and features a durable gloss black powder-coat finish. Fits into 2 x 2 receivers. Drop: 2 Rise: 1 Ball Hole diameter: 1 Pin Hole Diameter: 5/8 Drop Capacity: 5,000 lb. GTW / 500 lb. TW Rise Capacity: 3,500 lb. GTW / 350 lb. TW