JUMBO DUPLICATE SALES SLIPS W/NUMBERS (FOR DRUGGIST) 4 1/4" X 6 1/2" Description2-Part Carbonless Sets are printed in blue ink on white/pink carbonless paper. Sales slips are shipped in cardboard dispenser trays. 2-Part Carbonless Sets are printed in blue ink on white/pink carbonless paper. Sales slips are shipped in cardboard dispenser trays.