Robust Four D-Ring Mechanism equipped with ten coin sheets already Each sheet has twelve pockets. Every 50 x 50 mm Luxurious Leather Cover able to accommodate up to 60 OPTIMA coin sheets or 15 OPTIMA banknote sheets. Overall size: Dimensions: 245 x 270 x 55 mm reusable OPTIMA Coin Sheet refillable Refillable with OPTIMA Banknote Sheets & Lindner Banknote OPTIMA Sheets ���