Alvin Engineers Field Books are compact for on-site sketching and notes. Field notebook cover is extra stiff, has high-visibility yellow color, completely protected by a waterproof barrier with blind embossing. Pages are white ledger paper specially formulated for maximum archival service, ease of erasure, and protected by a water-resistant surface sizing. 4.625" x 7.25" page size, 32 sheets, 64 pages, sewn/perfect bound. Left page has blue horizontal lines, red vertical lines, 6 columns. Right page has 8 x 4 blue lines, red vertical center line, 34 columns. Curve tables are located on the inside front and back covers. Handy engineering notebooks are made in the USA.