Description: - 【Material】: The billiard cue ferrule is made of stone material, which is sturdy and not easy to break. - 【High Performance】: The pool cue ferrule is compact, portable, lightweight, and long service life. - 【Size】: outer diameter 12mm, length 10mm, inner diameter 7.5mm. - 【Easy To Install】: Easy to apply to the club head, screw it on, no complicated steps required. - 【Replacement Parts】: A great replacement part for your snooker pool rod, a great and useful tool accessory. Specification: - Material: Stone Size Chart: Outer Diameter: 1.2cm/0.47inch Length: 1cm/0.39inch Inner Diameter: 0.75cm/0.30inch Package Includes: 1 Billiard Cue Ferrule Note: Please allow slightly errors 1-2cm differences due to manual measurement.