Alvin Engineer's Field Books are compact for on-site sketching and notes. Field transit notebook covers are extra stiff with 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. Available in several size and page configurations plus curve tables and practical information. Pages have blue horizontal lines, red vertical lines, columns. These handy engineering notebooks are made in the USA.