Size: A6 size, 5.7 inch x 4.1 inch , 7mm college ruled pages Cover: thicken plastic translucent frosting hardcover, waterproof 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 2 Pcs A6 Ruled Clear Hardcover Spiral Notebooks Journals Planner 5.7 Inch x 4.1 Inch 160 Pages (80 Sheets) Thick Paper (Ruled 2 Pcs)