Plastic boxes are an attractive alternative for packaging because of their material and sturdiness Plastic boxes are a great way to package your product while offering the ability for the end user to see the item clearly.. We offer a huge selection of sizes and many are available in FDA approved materials. We start off with our soft flexible PET plastic boxes and features our rigid hinged plastic boxes lower on the page. our standard range includes an enormous number of plastic boxes in various shapes, sizes, and designs: square, rectangular, transparent or translucent, colored, etc. etc. etc. - in other words, we have the perfect plastic box for almost every packaging task.