Are you still looking for accurate and durable phonograph calibration tools? Is the needle of your record player offset? Then don't hesitate to buy our Anti-Sliding Gauge Ruler directly. You can easily solve the problem of stylus inaccuracy by yourself. Features - Color: White - Material: Acrylic - Size: About 29.50 x 29.50 x 0.20 cm / 11.59 x 11.59 x 0.08 in - Anti-Sliding Gauge Ruler made with fine workmanship to ensure practicality and durability - Calibration and detection for vinyl record heads; check and adjust the angle of cartridge and needle - Durable, firm, and nonslip; light and accurate, it provides reliable calibration results - A must-have item for vinyl record enthusiasts and a great gift for friends - A useful tool to verify the alignment and angle of your turntable cartridge; high-precision anti-skid gauge ruler delivers excellent performance Package List: 1 x Anti-Sliding Gauge Ruler