Stillman & Birn Delta Softcover Sketchbook, Heavyweight 180lb, Cold_press, Ivory, 28 Sheets - 5.5x8.5 Contains 28 sheets of extra heavy-weight 180lb archival paper The paper is ivory and has a cold-press surface Suitable for all dry media as well as light washes-wet media-watercolor ph neutral as well as lignin and chlorine free Flexible yet rugged soft-bound cover with sewn bindings