Amazon.com: Fluid 100 Artist Watercolor Block, 140 lb (300 GSM) 100% Cotton Cold Press Pad for Watercolor Painting and Wet Media w/Easy Block Binding, 4 x 6 inches, 15 Sheets
Amazon.com : Binditek 100 Pack 12 Mil Sand-Textured Polycover - for Business Reports and Proposals - Lightly Textured Sand Finish - with Square Corners,Un-Punched, Black Color : Office Products