Professional grade 8.5x11 sketchbook with premium 68lb/100g/m2 acid-free paper that resists bleed and smudge. Ideal for dry media such as pencil, charcoal, and pastel. Features 50 smooth sheets suitable for beginners and professionals, perfect for drawing and sketching projects. The durable spiral binding allows for 360° page turns, and pre-perforated tear lines enable clean paper removal. Its 8.5x11 size fits standard portfolios, and the back hardcover doubles as a drawing board. The thick, non-yellowing paper is compatible with colored pencils, gel pens, markers, and charcoal, with an acid-free surface that extends artwork longevity. This versatile sketchbook set, designed to meet studio and classroom standards, makes a great gift for art students and creative individuals. The premium matte cover protects pages, while the reinforced spiral spine ensures durability. A built-in backboard provides a stable drawing surface on any terrain, making it an ideal travel sketchbook. Perforated pages can be easily removed for framing, compatible with all dry media for sketches to detailed illustrations.