Christmas themed opaque polythene mailing bags incorporate a permanent self-seal closure. They are high in strength, whilst still offering a low posting weight and are also weather-proof, burst and puncture resistant. They will be available from stock from the 8th November 2010. The white mailing bags are printed with a red and green tree and are available in 1 size: 320mm x 440mm + 45mm flap. The metallic blue bags are printed with a white and blue tree and are available in 2 sizes: 320mm x 485mm + 50mm flap & 460mm x 560mm + 50mm flap. Should you require an other size, please contact us on 020 8688 7778 so that we can quote for your requirement. The minimum order quantity is going to be 2,000 on a custom size.