Ideally, labels should be printed on a sticky A5 label (portrait) using a laser printer. We recommend laser print because this does not smudge if it gets wet - say the driver collects in the rain, and sticky labels do not come away from the parcel in transit. However, we appreciate that many customers will not have this equipment available and there are alternative methods.
If you are unable to print on to a sticky label, you can print the label on plain A4 paper and then put the label in a clear sticky-backed document envelope and attach this to your parcel. You can buy these 'Documents Enclosed' envelopes in bulk from any standard stationery shop.