The BCW Chroma Inner Sleeves are made of two panels of archival-safe polypropylene: one panel is glossy-clear and the other is solid red These sleeves fit perfect inside a regular card sleeve doubling the protection on your card. The price of a pack of inner sleeves in negligible against the price of replacing expensive cards. Clear front, solid red back Fits inside standard sleeve Protect cards while shuffling and playing 100 sleeves per pack Exterior Dimensions: 64mm x 89mm