Description: 【Precise】: The Pool Billiard Cue Straightness Checker can precisely detect the straightness of the billiard cue, quickly identify any bends or deformations, and achieve reliable cue evaluation. 【Convenient】: The Pool Cue Straightness Checker is easy to operate just place the cue in position and press the start button to measure immediately without complex settings. 【Rotatable】: The Detector Checker Inspect Tool is equipped with an electric rotating display, it can rotate the cue 360° during the test to ensure a comprehensive inspection from all angles. 【Stable】: The Straightening Tester has a sturdy structure, which prevents shaking during use and ensures accurate and stable measurements every times. 【Compatible】: The Billiard Training Aid is suitable for various cue materials, including wooden and carbon fiber cues, meeting the needs of different users. Size Chart: Package:17.5cmx12.5cm/6.89inchx4.92inch Package Includes: 1 set Pool Billiard Cue Straightness Checker Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.