The BlueSpot 30 Piece Assorted Sandpaper Sheets are suitable for use on metals, painted surfaces, wood and plastic. Course grit is ideal for paint stripping and rough sanding. Medium grit is ideal for general sanding. Fine grit is ideal for finishing and sanding between paint coats. Extra fine is ideal for final finishing and sanding between paint coats. Contains: Course grit (x5). Medium grit (x10). Fine grit (x10). Extra fine grit (x5). Sheet Size: 230mm x 280mm.