Ziplock bags are used in residential and commercial kitchens as well as many industrial and non food related industries. There are a large number of sizes and thicknesses available. All of our ziplock bags are food safe and FDA approved. Case quantities range from 250 bags per case up to 1000 bags per case.We have broken bag sizes into three categories. The three bag sizes are determined by the width of the bag which is the first number in the bag measurement. Below is an explanation of the bag sizes and what thickness is available in each size.