Scientific Notebook Company Hardcover Notebook: Journal Variation I, Ruled, 10 3/8" x 8 1/8", 160 numbered pages (Burgundy 160JKCP) Archival writing paper, 70 pound heavyweight variation in white. Smyth-sewn binding adds permanently and lay flat construction. Smyth-sewn construction offers uncompromising durability and functionality; pages are permanently bound and lay flat Moisture resistant Burgundy covers. Made in the USA. 160 numbered pages.