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. This CURT adjustable deep drop channel-style ball mount has a shank size of 3 in. x 3 in. and features 2 different trailer ball sizes to accommodate 2 different coupler sizes: 2 in. and 2-5/16 in. It also features an adjustable shank assembly with multiple mounting holes for varying ball heights. Each trailer ball can be raised to a maximum of 8-5/8 in. rise or lowered to a maximum of 10-5/8 in. drop, allowing you to make your trailer completely level in any towing situation. The channel-style design and dual-pin mounting system also provide a built-in anti-rattle feature to eliminate obnoxious chucking noises. This CURT adjustable ball mount offers a gross trailer weight capacity of up to 10,000 lbs. for the 2 in. ball and 21,000 lbs. for the 2-5/16 in. ball. It allows you to tow a variety of heavyweight trailers, and it features 2 pin holes in the shank to be mounted at an 11 in. or 12 in. L. The adjustable channel-style shank can also be used with the channel-style combination pintle mount or ball mount platform attachment to give you the option of installing your own trailer ball size. Material: Steel.