Features: Sliding in design, which can slide on any billiard cue and instantly convert it into a bridge head rod connecting to the cue stick, but will not harm the cue stick. Make of Aluminum, light weight and enduring, not easy to damage. Can stored in pocket or case, easy to carry, and can placed anywhere. Good stability and excellent performances, easy to use. Suitable for most people, easy to use, perfect for most billiard cues, widely used in party, family, club and other place. Specifications: Materials: Aluminum Size: about 9x6.5x1cm/3.54x2.56x0.39inch Package Includes: 1Pc Pool Bridge Head note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.