This FreeMotion OEM Cable End Assembly comes with a heavy duty coupler for attaching cable to strength machine attachments. The assembly ships with a rubber coupler cover. OEM #GZ4509 is designed to fit FreeMotion GZFM series equipment. The coupler is a critical safety component on all FreeMotion strength machines. When inspecting cables for wear, it's a good idea to examine couplers as well. Replace damaged or bent couplers.