Tamiya sanding sponge 400 300087147. The Tamiya sanding sponge is covered with a 400 grit and is very flexible, so it adapts to the surface to be processed. It is primarily intended for use in plastic model making, but is also suitable for finishing wood and metal. The sponge can be cut with a cutter. Also suitable for wet sanding. Contents: dimensions 114 x 140 mm x 5 mm. All sponges, higher value = fine N° 300087147 = 400 grit N° 300087148 = 600 grit N° 300087149 = 1000 grit N° 30. bbbbbbr 0 = 1500 grit. Warning: not suitable for children under the age of 14.