We've updated these best-selling deposit bags with stronger yet thinner plastic and a new look. Our new Gold-level Seal indicates our highest degree of security against all mechanical (hand-pulling), chemical (solvents), thermal (hot air and freezer spray) and moisture (licking with tongue) tampering attempts. Functional: #4 recyclable plastic with clear front to view contents and opaque back to hide contents. Top over bottom pockets separate cash from checks. Unique barcoding and numbering on bag and receipt for easier processing with less risk of errors. Tear-off receipts for convenient tracking and deposit identification.