Width of tip: No minimum/ 14 mm (0.551181 inches) maximum
Weight: No minimum / 25 oz. maximum
Length: 40 inches minimum / no maximum
The cue tip may not be of a material that can scratch or damage the addressed ball. The cue tip on any stick must be composed of a piece of specially processed leather or other fibrous or pliable material that extends the natural line of the shaft end of the cue and contacts the cue ball when the shot is executed.
The ferrule, if of a metal material, may not be more than 1 inch in length.