This Balance Rite forward weighted pool cue extension is for a 3/8 x 10 Threaded Joint. The Balance Rite 4\

This Balance Rite forward weighted pool cue extension is for a 3/8 x 10 Threaded Joint. The Balance Rite 4″ extension fits between your shaft and butt to give you the extra length you need. The Extension weighs ~2oz. and is designed to be used on every shot.