Stillman & Birn Delta Series Sketchbooks 6 in. x 8 in. wire bound 25 sheets by Stillman & Birn

These hardcover sketchbooks feature high performance, pH neutral, lignin and chloride free paper. The extra thick 270gsm paper has an ivory cold press surface and is suitable for all dry media and inks. Both the inside and surface sizes can also be used for light washes, wet media and watercolors. The covers are made from extra heavy binder board that is durable and resistant to warping. The hardbound books contain 26 sheets and the wire bound books contain 25 sheets.