Wise Buy saves you money by utilising postage costs for a single item and buying multiple items up to Royal Mail's limit of 2kg. The postage cost of a single pack of paper weighing 0.6kg is the same as 3 packs of paper weighing 1.8kg To make this approach even better, HobbyPrint® also offers multi-buy quantity discounts that can be found in the options dropdown on the right.