Royal Mail 48 Signed For - PPI Size / Format 14mm x 79.5mm Label Size 99mm x 33.9mm 16 Labels per A4 sheetRoyal Mail 48 Signed For provides delivery for non-urgent items, usually within two days of dispatch, complete with delivery confirmation. The recipient must provide a signature to confirm delivery, making it easier to verify that an item has been correctly delivered by Royal Mail.With Printed Postage Impressions (PPIs), it is easy to access pre-paid postage for large amounts of outgoing pos