Choose the diameter and the foam density of your sanding pad according to the use.
We generally proceed with a big hard pad (8 " - 200mm) on the plane surfaces of the board, and with a small soft pad (6 " - 150mm) for a more precise work on the curved zones or the rails, the softer density of the foam adapting itself to the roundings and avoiding any deformation of your initial shape.
150 x 25mm Red Velcro Ultra Soft Finishing Foam Pad.
8" (200mm) sanding pad - density Super Soft. Thread M14 (european metric). Thread 5/8" (US metric) to order.