Description This is a professional anti-sliding LP Vinyl Turntable Record Player Disc Stroboscope Disc, made of premium material which is durable for long time use. It is practical for LP vinyl recorder, which can help to detection the of the needle. Features -Color:White -Material:Acrylic -Size:7.80X7.80X0.80cm/3.07X3.07X0.31in -Made of high-grade 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 vinyl records. -The scale on the calibration plate is clear and clear, helping you quickly identify the result of stylus offset. -You can give it to friends who to listen to vinyl records, they will love it very much -Check the slide gauge needle calibration plate at a distance.You can give it to friends who to listen to vinyl records, they will love it very much. Packing list: 1 x stroboscope disc