These are Blu-ray sized digipak replacement trays. These trays are glued into cardboard Blu-Ray holders. The trays are clear, perfect for seeing a background image in the cardboard! They are a great item for anyone producing a Blu-ray who doesn't want to use a standard Blu-ray box to do it! Each individual tray measures 6.65" x 5.28" and is 0.18" thick (169x134x4.5mm)