10 x 12 (4 mil) Poly Bags on a Roll Discount_5933550108762_10 Expandable envelopes are great for

Expandable envelopes are great for shipping books and other bulky items

non-toxic materials that stay colder than ice

Each white poly bubble mailer is cushioned with a 3/16"" thick bubble lining along the inside wall to protect your products against damage

printed material

Simply laser print an item number or destination on a label

10 x 12 (4 mil) Poly Bags on a Roll Discount_5933550108762_10 Expandable envelopes are great forPoly bag opening is always on the width dimension which can be heat sealed, or closed with twist ties or bag tape All poly bag sizes meet FDA and USDA specifications for food. Your product's contents are always visible through these clear low density polyethylene bags. Our bags are manufactured from seamless poly tubing and are bottom sealed for extra strength, no side seals or slit seals.