The Cuetec Chrome Screw In Butt Cap has a rubber bumper and is made to fit any Cuetec cue with weight adjustability. You remove the entire butt cap with the bumper intact to access the weight cavity to add or remove weights. Please do not remove the rubber bumper as it is installed at the factory and not intended to be removed. These butt caps are also designed with a hole at the base for the new SVB cue Extentions.