Stillman & Birn Beta Softcover Sketchbook, Heavyweight 180lb, Cold-Press, White, 28 Sheets - 3.5X5.5

Stillman & Birn Beta Series Softcover Sketchbook, 3.5" x 5.5", 270 GSM (Extra Heavyweight), White Paper, Cold Press Surface

Stillman & Birn Zeta Series Softcover Sketchbook, 3.5" x 5.5", 270 gsm (Extra Heavyweight), White Paper, Smooth Surface

Stillman & Birn Alpha Series Softcover Sketchbook, 3.5" x 5.5", 150 gsm (Heavyweight), White Paper, Medium Grain Surface