425mm x 600mm grey recycled poly mailers are a great value postal & shipping packaging option for a wide range of items. The grey outer & black inner ensure goods are concealed & the 55mu polythene construction is puncture & tear resistant; ensuring your items are kept safe & secure during transit. Featuring a peel & seal adhesive for a strong, secure closure, these poly mailers are perfect for sending all your non-fragile goods. Made from recycled materials, these shipping bags are also fully recyclable, making them a great choice for your eco conscious pack & despatch operation. Supplied in packs of 50 for easy handling & storage, our grey recycled poly mailers are ideal for both large & small operations.