About this item: - Premium Acid-Free Paper: 68lb/100gsm paper resists bleeding and smudging, preserving your artwork for years. - 400 Sheets Total: 4 sketch pads, each with 100 sheets (9x12 inches), perfect for prolific artists. - Spiral Bound & Perforated Pages: 360-degree lay-flat binding and micro-perforations allow easy, clean removal for framing or sharing. - Versatile for Dry Media: Ideal for graphite, colored pencils, charcoal, pens, and crayons. Not for markers. - Durable Hardcover: Sturdy cover and backing board protect your work, portable for on-the-go creativity. - Great Gift Idea: Perfect for back-to-school, birthdays, or holidays, suitable for beginners to professionals.