Provides flexibility and conformability to allow for sanding by hand in areas inaccessible to machine sanding. They feature aluminum oxide mineral coating on a foam pad with a waterproof bonding system. Can be used either wet or dry when sanding on wood, fiberglass/gelcoat, marine paints, metals and plastic.
| Brand | 3M Marine |
| Box | 20 |
| Description | Fine |
| Grade | 320-400 |
| Size | 4-1/2" x 5-1/2" |