peculiarity: This product is light, and with the ability of press prevent, shake prevent, especially Anti-static. technic: There is nothing between the pe bubble film inside and the aluminium film outside. The bubble film is directly coalesce to the aluminium film without gluewater, so that insure it can be 100% recycle, and accord with the request of environmentalism. using area: It can be used to post tape, CD, camera lens, film, certificate, IC card, minitype machine accessory and so on goods that need protecting.