This bROK ball mount provides optimal trailer towing with a 5-in drop from the top of your receiver to aid in leveling your trailer while towing. The bROK ball mount is made of welded steel with black powder coat finish for years of service. The 2-in shank accommodates all class III-IV receivers, a 5/8-in hole for receiver pin or lock and a 1-in hole for the hitch ball shank.