Fangrui Product Details New And High Quality.made Of High-quality Acrylic Material, , Firm And Nonslip 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. Side A Is Used To The Side Sliding Force Of The Stylus, Side B Is Used To Calibrate The . Easy To Use, One Sided Alignment Mat Provides A Diagram For Alignment. How To Use: 1. Place The Calibration Disk On The Vinyl Turntable, Move The To The R2 Position, Align The Stylus With The Center Of The Circle Or The Arc Line, And Adjust The Angle Of The So That The Front Edge Of The Is Level With The Horizontal Line On The Calibration Disk. 2. Move The To The R1 Position, Calibrate The Angle Again, And Check Whether The Front Edge Of The Is Level With The Horizontal Line On The Calibration Disk. 3. Repeat Steps 12 If Necessary. You Only Need To Loosen The Screws To Move The . After The Adjustment Is Completed, Tighten The Fixing Screws. (calibrate The R2 Point So That The Front