... : message, telephone #, invoice, etc.. Carbonless book:also called as carbonless note book, carbonless invoice book, carbonless message book, carbonless order book ... (NCR), Characterstics: 100% virgin pulp / Clear image / Aging - resistant, Base weight: 45-60gsm, Imange: blue/black, Color: White/Red/Yellow/Blue ... welcome, size optional, good quality Carbonless Message Book (Post It Note Inside)