The product I am introducing to you is a calibration tool for vinyl record players, a stylus oversize, with clear and precise scales, and the calibration results are clear . Made of acrylic, durable and , helping you quickly adjust the stylus to the correct position. Features -Color: White -Material: Acrylic -Size: About 29.80X29.80X0.20cm/11.71X11.71X0.08in - The scale on the calibration plate is clear and clear, helping you quickly identify the result of stylus offset. - Made of acrylic, wear-resistant and durable, to meet your basic needs. - It is a perfect and professional tool whether it is adjusted at home or used in a professional repair shop. - You can give it to friends who like to listen to vinyl records, they will love it very much. - The edges are polished smoothly and will not hurt your hands. Package list: 1 x Anti-sliding Gauge Ruler