EXFORM Donut Board EP Adapter for DJ Dimensions are correctly sized to fit the size of the domestic board with a 1.5 inch (38.0 mm) hole. For DJ play on the domestic version, the diameter is perfect for cuing and scratching, so it will not rattle around in the gap and prevent the hook from jumping. Precision machined aluminum to hold uneven rotation moment. Beautiful anodized red finish Fuji shape for quick record change The shape with finger picking head (groove to prevent slipping) for easy placement and removal of this adapter. Comes with a dedicated drawstring bag.