If you own multiple trailers or frequently tow a variety of loads, you know how much time and money are spent tailoring your towing system to each and every individual trailer. There is nothing more inconvenient than switching back and forth between a few different ball mounts and trying to remember which mount fits with which trailer. A CURT adjustable ball mount is your multipurpose towing solution. Its key feature is its adjustable design that takes the form of an adjustable channel-style assembly. It uses a series of holes to allow the ball mount platform to be vertically adjusted and allow for significant flexibility in drop and rise. With a variable ball height, it can easily accommodate different coupler heights and multiple trailers. This adjustable channel-style replacement shank is rated for 20,000 lbs. GTW and features a solid shank (NOTE: Never exceed the lowest-rated towing component). It can also accept a variety of channel mount attachments (sold separately). This adjustable channel mount features nine holes with a total height of 9-3/4". It can accept pins and clips #45925 or a lock set #23556, and it also has two holes in the shank for an 11" or 12" length. This CURT adjustable ball mounts come with a 2-1/2" x 2-1/2" shank and is made with sturdy steel construction. For long-lasting rust, scratch and UV resistance, it also features a durable carbide black powder coat finish to give you peace of mind for the road ahead.