Ever have a project that requires an 80" long clamp? You don't have to invest all that money on a clamp that you may only use one time. If you already own Bessey K-body clamps then this is a must have item for your workshop. The Extender will allow you to take any two clamps and turn them into one long clamp. The Extender does not interfere with the top edge of the bar, allowing your stock to stay flat during glue ups. Works with K-Body Revo and The original style K-Body Clamps.