Fits standard sized Pokémon Elite Trainer Boxes (ETBs). Precisely designed to securely hold standard-sized Elite Trainer Boxes with a perfect fit. Secured by Industrial Grade Magnets. Premium acrylic with Ultra thick (8mm) construction. Up to 99.9% UV Protection: Shields boxes from harmful UV rays to prevent fading, yellowing, and loss of color over time. Perfect for protecting and preserving your standard-sized Pokémon Elite Trainer Boxes!!!