Clear front & back. For cards measuring up to 44 mm x 68 mm (1 11/16" x 2 5/8"). This size is typical for small cards in most European board games like 'Catan', 'Camel Up', 'Dimension' and many more. The cardbox safely stores 50+ sleeved cards, and doubles as a card-holder during play. Just flip back the lid and lock it in place! Contains 50 clear card sleeves in 80µ polypropylene, with a soft non-reflective matte treatment. No acid. No PVC.