These BPA-free clear bags are perfect for use in food packaging because they are transparent. made from polypropylene that has food-grade quality. Like cellophane bags, plastic bags manufactured of BOPP are transparent. They are ideal for food packaging since they are thicker than cellophane. Compared to cellophane bags, BOPP bags are thicker and have a more luxurious feel to them. BOPP bags have a very high seal strength since they may be heat sealed.Bopp is exceptionally clear and has great water vapour barrier properties. Additionally, it is impact and puncture resistant. A cello bag that looks truly professional and is ideal for your treats.