These Funko Pop! Vinyl protectors are unmatched in quality and value. With thick 0.50 mm walls, you can stack up to 5 POP!s without crushing the POP! on the bottom. Pop-up bottom for easy assembly and storage. It is strong, lightweight, durable, impact-resistant, and naturally colorless and transparent. Protect your collection! If you are a serious Funko POP! Vinyl Collector you need Chalice Protectors --the ultimate in protection for your precious Funko POP! collection!! The Chalice will not only keep the box in mint condition, but will also let you display your collection while preserving it. As a collector you know the value of an item is determined by rarity AND the condition. Chalice cases are custom made for the Vinyl Funko Pop! 4" figure boxes. Handle the POP! without fear of getting dirty and stack higher without crushing the cardboard boxes. With 100% archive grade acid-free PET 0.50 mm thick crystal clear plastic, you will keep your collectible safe. (PET is globally recognized as a safe, recyclable packaging material. It is strong, lightweight, durable, impact-resistant, and naturally colorless and transparent.) Now you can display or handle your Pop Vinyl without worrying about dust or fingerprints. To start protecting your POP! collection and buy today!!! (Pop! Figure in photos is for demonstration purposes only and is not included.) Trademark Pending.