Dear Sir, We are company in Vietnam, and I want to buy a huge amount of air column bags. I you see the sample on the attached file I send you the specification: Air chamber diamater width: 2.8cm Total length of the air column roll: 24 inch and 34 inch Thickness: 60 micro ( one layer), 120 micro (double layer) Please check your price and send me the quotation Quantity : 20 Price: 55