Made from high-transparency polyethylene terephthalate (PET) plastic, acid-free and environmentally friendly. Soft creased folds - Allowing these to be ready to go in just seconds. Extra room on the inside for easy loading and removal - No snug fits (To Prevent friction and tearing). Removable film to ensure your case is clearly visible for the world to see. [Material]: PET Plastic - Eco-Friendly & Acid-Free.
[Measurements]: 13.9mm L x 4mm H x 14.2mm W. [Designed for]: Pokemon Japanese Booster Box (Smaller Type). [Designed for]: Pokemon Japanese Booster Box (Flat Type).