Stillman & Birn Beta Softcover Sketchbook, Heavyweight 180lb, Cold-Press, White, 28 Sheets - 8.5x5.5 Landscape Contains 26 sheets of heavy-weight 270 gsm archival paper The paper is white and has a cold press surface Ideal for pen work but suitable for use with all dry media and light washes Neutral pH as well as lignin and no chlorine Flexible yet rugged soft-bound cover with sewn bindings