The 2 Pieces Billiard Cue Straightness Checker is a crucial tool for pool players and billiards enthusiasts. It's designed to ensure that your cue is straight, providing an easy and accurate way to detect any deviations or inaccuracies. This product offers two essential features: a mechanical design for easy wall attachment and a digital readout displaying straightness percentage. The straightness checker includes a roller that moves along the cue shaft, capturing its shape as it goes. The roller's data is then displayed on the digital readout, allowing you to quickly identify whether your cue is straight enough. With this tool, you can maintain the perfect grip on your cue, enhance your game, and ensure the longevity of your investment.