3 Pk, BAZIC 50 Sheets 3" X 5" Top Bound Spiral Memo Books (4 per Pack) Comes with durable covers with white board backs. Conveniently sized for note taking on the go. It fits comfortably in a backpack, purse, or even your pocket. BAZIC 50 Count 3 inches by 5 inches Top Bound Spiral Memo Books 4 Per Pack; 12 Memo Books In Total (600 sheets)