This electronics mount is outfitted with quick-disconnect and vibration damped mechanisms. Fits all 10 to 12.5 mm (0.4 to 0.5 inch) diameter crossbars. SW-MOTECH GPS Cross Bar Mount Detachable, vibration damped GPS Mount. Mounts on the crossbar. Surface black, powder-coated. Pivoted bracket is fixed by QUICK-LOCK connection on the base plate. Included: QUICK-LOCK Cockpit GPS-Mount. Mounting material. Mounting instructions.