AMMO by MIG Accessories - Water Based Paint for Modelling
Item: MULTIPURPOSE SANDING STICK

From the Manufacturer:

This sanding stick provides 6 different grits: 150/240/320/600/1200/2000, ideal for any sanding job covering a wide range of applications. Each grit area is easily identifiable thanks to their different colours. The flexibility of the material easily conforms to any shape, including rounded surfaces. The coarser grit range can be used on a full range of materials including resin, metal, wood and, of course plastic. The 2000-grit area will allow you to eliminate small defects and blemishes, even on clear plastic parts or previously painted surfaces.