These GEMLORD 12 Pieces Large Clear Cosmetic Organizer Makeup Bags are great for way more than cosmetics.My husband ordered a set of these first to organize small items in the basement. As soon as I saw them, I ordered a set for myself. They are made of thick, clear, PVC. There is plastic welting at the seams for durability and to help the bags keep their shape. They have a zippered closure at the top. There are two carry handles. The bags measure 12" x 9" and are 4" deep. The PVC is of great quality. It won't easily be punctured. The zipper is of pretty cheap quality but because the opening is only on the top, it's not under much stress so the zippers are adequate. The same with the handles - they aren't made of the highest quality webbing but they are definitely adequate. And best of all, you get 12 of them!I am using these primarily for crafting - in particular sewing and beading. They are the perfect size for holding sewing notions or beads in little jars. Because the bags are crystal clear, you can see all of the contents at a glance! I have one for each of my sewing machines that I keep the machine-specific accessories in and it's so convenient. I recently purchased a machine for a young friend learning to sew and I used one for her sewing accessories, too, including thread, bobbins, presser feet, etc. It makes it very easy to keep track of everything and have it right at hand.Seriously, pretty much anyone will find dozens of uses for these bags. They are great.