... 2.Sizes available 3.OEM Metallic bubble mailer ,waterproof poly envelop Aluminized Bubble Bag or MailerUsage1,post tape ,mini-type machine ,CD ... .2,packing instruction books,papers, picture frame, gifts,process packagings . Advantages1 bubble padded with shockproof ,waterproof,dustproof,,sound insulation, heat insulation, damp ...