The Blue Spot Tools 20 Piece Assorted Wet And Dry Sandpaper Sheets are suitable for use on metals, painted surfaces, wood and plastic. Specially designed for use either wet or dry. Coarse 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. Size: 230mm x 280mm.