These 20-30 gallon high density lightweight bags are an ideal choice for large amounts of paper from the office or food wastes from the kitchen. Choosing a clear bag makes for easy viewing of what–s inside while simultaneously locking in moisture as well as odors. This bag is star sealed which means it produced in a way in which the plastic is folded and has been carefully sealed in a single spot. Sealing the bag this way eliminates potential gaps or breaches that can occur with other brands. With 500 bags per case, you can be assured you are getting your money–s worth.