White Royal Mail Large Letter Postal Boxes These special White Postal Boxes are specifically designed to be compliant with the Royal Mail postal regulations and sizes for Large Letters. Since the change to "Pricing in Proportion" (PIP) it has been tricky to know what each letter fits into - sowhy take the risk and use these great boxes to be 100% sure. The boxes are available in three great sizes and are made from a White Single Wall Cardboard. The technical size for them is 0427 (if you're interested!). The haveearlock lids with flaps that lock in the box making them easy to seal with tape. The sizes are great for flat items, accessories, jewellery, phones and similar items. The white exterior of the boxes can be printed on based on certain minimum quantities so if it's printed boxes that you are after then please give one of our team a call on 020-3002-9960 and we'll talk you through your bespoke options. We carry 1000's of these boxes in stock so Next Day Delivery throughout the UK is not a problem - and pack sizes start from as little as 25 bags with great bulk savings on orders of 500 and 1000 boxes.
