brand new and high quality Features: Made from for extra durability material, whilst the air bubble for protection ensures contents arrive safely. Strong peel and seal closure for ease of use, maximum security and longer shelf life. The bubble mailers come with a self-adhesive tamperproof seal. Once the envelope has been sealed, it cannot be opened without visible signs of tampering. The smooth surface of the mailers makes it easy to stick stamps and address labels. Available in a variety of different colours and finishes. Specification: Material: Aluminized Bubble Poly Film Color: Silver and Hologram, as picture shown Optional Size:app. 15 x 20cm / 5.9 x 7.87in 18 x 23cm / 7.08 x 9.05in 25 x 30cm / 9.84 x 11.81in 28 x 37cm / 11.02 x 14.56in Quantity: 1set(25pcs) Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-2cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1set(25pcs) x Bubble Padded Envelopes(other accessories demo in the picture is not included.)