Zen Pink Pig, 4 x 4 Inch Square Sketchbook | 35 White Sheets, 100 Pound | Emerald 4 x 4 inches square protective, hardbound cover. 3.98 x 3.85 inches mixed media plain paper inside, ideal for zen meditation drawings. 70 pages of acid free, white 101 pound (150gsm) cartridge paper. Unique and colourful, hand-wrapped tissue paper covers. Practical wire-binding that lasts longer than glue, and lets you fold the book any which way you like.