The .35mm PET box will provide the perfect protection from dust and light wear, so you can relax knowing you collection is protected. With ease-of-use in mind when designed, these protectors come with a handy auto lock bottom feature, that will ensure your POPs sit nice and flat and saves you plenty of time when assembling those thousands of boxes you need to protect your entire collection. These specially designed pop protectors are a great way to protect your Funko Pop! Vinyl investment, whilst at the same time allowing you to enjoy your collection.