W specification of special embossing + special mat! One side of the specially embossed sleeve is rough, and one side of the special matte sleeve is smooth and easy to use. The rough surface of the sleeve + the smooth surface of the sleeve make the sleeve slide smoothly and make it easier to shuffle vertically and horizontally. There is an advantage that the deck does not collapse easily.Set of 60 SleevesSize: 66 x 91mm (thickness 0.1mm)Made in Japan