These protective postal boxes have dimensions of 322x229x20mm, allowing it to be sent as a Large Letter through Royal Mail. Offering an easy assembly with an integrated locking tab and pre folded creases, these cost-effective white postal boxes are perfect for securely sending your lightweight items. Features include:

• Suitable for A4 items
• Made from 75% recycled single wall board
• Straightforward to assemble
• Recyclable, reusable and degradable
• Sized to ensure low postal costs
• Supplied flat packed