Master Lock 3456DAT One Tool Torque Hitch Ball 2 inch long, 0.75 inch wide and 2.50 inch high hitch ball with a 3500 pound load rating Only one wrench needed to tighten hitch ball when used in conjunction with the one tool torque ball mounts Simplifies and speeds installation Prevents damage of hitch ball during installation Environmentally sustainable packaging stands up to retail environment and is biodegradable