Description: 【Premium Material】: Our billiard bumper is made of quality aluminum alloy and rubber, good durability, lightweight, long using time 【Features】: The billiard bottom plug protector case is for connecting the club and extension handle 【Workmanship】: The pool cue extension is with fine craftsmanship, wear and drop resistant 【Easy Install】: The billiard cue extension bumper is simple install and convenient storage and using 【Great Replacement】: The club head screw pool cue block butt with simple and classic appearance, a great replacement part Specification: Material: Aluminum Alloy Rubber   Size Chart:25.7x23.4mm/1.01inchx0.92inch,Thread inner diameter 12.2mm/0.48inch,Outer diameter 13.5mm/0.53inch Package Includes: 1 Billiard Bottom Plug Protector Case  Note: Please allow slightly errors due to manual measurement and different monitors. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.