Protection for Billiard Cues: Specifically designed to fit billiard cues, this butt protector ensures the longevity and protection of your cue's tail endMaterial: Crafted from a combination of metal and rubber, this protector offers durability while providing a grip on the cueDimensions: Features an outer thread diameter of 14mm and an overall height of 22mm, ensuring a proper fit for your cueFunction: The pool cue bottom protection pad protects your cue head from damageEasy Installation: Designed for straightforward attachment to your cue, enhancing its protection without any hassle Specification: Material:Metal and Rubber Size Chart: Outer Thread Diameter: 1.4cm/0.55inchHeight: 2.2cm/0.87inch Package Includes: 1 Billiard Cue Bottom Plug Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.