These notebooks feature permanently sewn-in paper pages with either grid or horizontal ruled lines and a polyethylene cover. The hard cover is waterproof (pages are not).. Contains 96 pages with spaces for dates and signatures of workers and witnesses, necessary documentation for securing patent protection. Other pages include instructions for keeping research records, table of contents, and a page for issuing the notebook. Choose forest green cover with 0.25″ (6mm) green grid or burgundy cover with horizontal lines. Page size: Letter (8.5 × 11″) or A4 (8.75 × 11.25″).