and high quality.Feature: Made of high-quality acrylic material, durable, firm and nonslip for us to use. Light and accurate, it can bring a good and wonderful calibration effect.It is a useful calibration distance gauge tool to adjust the . Side A is used to test the skidding force of stylus, Side B is used to calibrate the head.LP Vinyl Pickup Calibration only, other accessories demo in the picture is not included!Item Type: LP Vinyl Pickup CalibrationMaterial: Acryliccolor: whiteThickness: 2mm/0.07inSpeeds: 33,45,78 RPMModel Number: Calibration PlateOutput Connectors: RCAStylus Type: otherMotor: NoneDimensions (W x H x D): 295mm/11.6in DiameterPackage Contents:1 * LP Vinyl Pickup CalibrationOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.