The Sirchie Integrity Evid Bags are stored and protected, can often mean the difference between conviction and acquittal. With this in mind, Sirchie introduces the integrity evidence bag. These All-in-One bags are waterproof, tear- and puncture-resistant, printable and include a tamperproof seal. No other evidence bag offers greater integrity, security and convenience. It is made of heavy-duty, 3.2-mil-thick, multilayer, coextruded polyolefin film. The IEB4000CS is 4" x 7.5" and offered in sets of 500.