1、PP Material: The turntable protractor is made of premium PP material, ensuring its lightweight, thinness, and long lasting durability. You can rely on its sturdiness for extended use without worrying about damage. 2、High Accuracy: Achieve optimal sound quality with the protractor's high accuracy design. By using the alignment gauge and tonearm, you can ensure that the stylus and alignment gauge are perfectly levels, avoiding overhang distortion and maintaining clear sound. 3、Quick and Easy Installation: The protractor is designed for convenient setup. Simply loosen the screw to adjust the tonearm, fine tune the alignment, and once satisfied, securely tighten the screw to lock the position in place. 4、Wide Compatibility: The protractor is specifically designed for calibrating the stylus and tonearm of record players. It is universally compatible with various models of turntables, making it suitable for a wide range of phonograph enthusiasts. 5、Clear and Accurate Alignment: The front of the tonearm aligns with the grid lines on the protractor. This ensures precise calibration when observed through reflective surfaces, allowing for accurate adjustments to achieve optimal sound reproduction. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.