Send your own colourful greeting cards and invitation using these matt cards, which are pre-creased for easy folding from A4 to A5 in size. Contains 20 sheets of A4 which fold to A5, with 20 envelopes. Full instructions are enclosed. These cards are suitable for use with all dye-based inkjet printers. Printing up to 5760 dpi in black & white and colour. WHSmith greeting cards are NOT for use in laser equipment, colour copiers or any other printer that uses dry toner.