Biaxially orientated polypropylene (BOPP) re-sealable Lip-N-Tape (lip and tape) bags have a high clarity and protects products from dirt and moisture damage. Acid free and no harmful plasticizer used in the production. It is chemically non-aggressive and therefore more suitable for long term archiving. Biaxially orientated gives its breathing properties and it will not ripple, dimple, or pucker over time. FDA approved for food storage. Perfect for storing those old family photos. NO SEALER NEEDED! Quickly package products with a self-seal adhesive lip. Sure sticking adhesive strip won't wear out. Speed up production with one peel back release strip motion and fold to seal. Bags are pre-sized and pre-cut to fit CDs, DVDs, VHS and are an alternative way to shrink wrapping.