The same coupler used on the Companion™ is used with the Companion™ Flatbed, but with a short base. It's designed to be used with steel flatbeds. It is able to sit in a 20"x20" well, up to 4" deep. It utilizes the B&W Turnoverball™ under-bed mounting system which makes it easy to remove. Cam action latching handle for easy release, even when parked on unlevel sitesUtilizes the B&W Turnoverball™ under-bed mounting systemPull a Gooseneck™ or a 5th Wheel with the same systemNo mounting rails1" thick, wrap-around jaws fit kingpin perfectlyPolyurethane bushings provide a quiet, rattle free towing experienceProduct Weight: Base 50 lbs., Coupler 75 lbs.Footprint: 17.25" Wide x 18" Deep