Size: A6 size, 5.7 inch x 4.1 inch (14.5 cm x 10.4 cm), 8 mm ruled pages Colors: 4 colors, wine red, black, dark green, beige, each color 2 pcs, total 8 pcs Cover: thick plastic hardcover, waterproof, each color 2 pcs Paper: thickened paper, 80 gsm paper, 80 sheets/160pages, can write on both sides, no inking to other side Purpose: wide use fo study, notes, office, homework, travel, children, men, and women Spiral Notebook, 8 Pcs 4 Color A6 Thick Plastic Hardcover 8mm Ruled Paper 80 Sheets (160 Pages) Journal for School and Office Supplies (8 Pcs A6)