3M Post It Note Marker,15mm X 50mm,50 Sheet Pads,4 Pads X 50( 200 SHEETS) 2 PKTS
Each PAD / SHEET is an ideal size of 15mm x 50MM, and contains 50 Sheets. 3M REF / 670 - 4CA-EU. These will mark all your pages that you potentially need to go back to, they are also ideal for writing on, you can make NOTES, NUMBER, DATE ETC.