Stillman & Birn Alpha Softcover Sketchbook, Heavyweight 100lb, White, 48 Sheets, 5.5X3.5 Landscape Contains 48 sheets of heavy-weight 100lb archival paper The paper is white and has a medium grain surface Noticeable tooth is suitable for use with all dry media and light washes ph neutral as well as lignin and chlorine free Flexible yet rugged soft-bound cover with sewn bindings