4-5/8 x 7-1/4 standard size book. 320 square grid printed on white ledger paper that has 50% cotton content and is specially formulated for maximum archival service, ease of erasure and protected by a water resistant surface sizing. 160 pages with 16 page curve table. Left page has blue horizontal lines and six vertical columns. Right page has 8 x 4 blue lines and a red vertical center line. Appendix of 11 tables of conversions, trigonometric functions, and formulae for solving right angles and curves. Sewn in pages with water-resistant hard cover.