Each book contains 80-100 sheets. Comes with a ring for easy carrying. To keep the thickness under 3cm, the ring will be detached and enclosed. Please attach the ring yourself. Please understand that there may be some yellowing or stains due to amateur storage at home. - Size: 35 x 90mm 1 piece - Size: 30 x 65mm 3 pieces - Size: 30 x 68mm 5 pieces - Type: Vocabulary cards - Number of sheets: 80-100 (varies depending on the card type) - Ring: With ring - Ruled lines: Ruled Thank you for viewing.