Features: Brand new and high quality Ensuring stability and accuracy with this pool cue straightness and concentricity checker, perfect for assessing your pool cue alignments. Suitable for pool enthusiasts want to enhances their game by fine tunings their pool cue for great performances. Perfect for use in pool halls and at yours home, this checker allows player to assess the alignments of their pool cue. Elevates your pool game with this pool cue straightness and concentricity checker, designing for both casual player and enthusiasts. This checker provides precise detection for evaluating the straightness and concentricity of your pool cue, help you make necessary adjustments. Specifications: Materials: Alloys Color Options: 4 Color is Available as Show in Picture. Package Weight: about.200g Height: about.28.5mm/1.12in Height: about.31.5mm/1.24in Package Includes: 1 Pair Billiard Straightness Checker note: Please allow 1-3mm error due to manual measurement. Please make sures you not mind before your bid. Due to the differences between different monitors, the picture may not reflect the actual colorful of the item. Thanks!