Description This is a professional anti-sliding LP Vinyl Recorder pickup calibration plate, made of premium material which is durable for long time use. Practical for LP vinyl recorder, which can help to detection the of the needle. Features - Color: As Shown- Material: Acrylic- Size: About 29.50X29.50X0.20cm/11.59X11.59X0.08in- The material is safe and durable, which is wear resistance and practical for the long time use.- No need to go to a professional repair shop, you can solve it by yourself, saving time and effort. - The operation method is simple, even the first time you can learn it right away, easy to use. - High performance and high accuracy ensure its practicality and popularity.The edges are polished smoothly and will not hurt your hands. - Simple color matching makes it both practical and beautiful. Double-sided design to meet your long-term use needs. Packing list: 1 x Anti-sliding Gauge Ruler