20-PK, 3M Flexible Sanding Sponge, Aluminum Oxide 2604, Fine (Grit 320-400)

20 sheets original carton 

3M 02604 SANDING SPONGE (FINE)

Flexible foam sanding sponges are thinner and larger than standard sanding sponges for sanding flat, curved, and hard-to-reach areas. Flexible foam sanding sponges have abrasive applied to one side of the sponge.