2 mil reclosable available in both 2 wall or 3 wall construction. The 3 wall bag has reclosable bag for specimen and separate pouch for paperwork. The pouch has a flap cover to insure that paperwork stays in place- Specimen Transport Bag, Printed BIOHAZARD, 8" x 10", 3 Wall, 1000/cs (DROP SHIP ONLY) Drop Ship Only