100 Ct. BCW Premium Half Dollar Coin Holders with BCW Storage Box 100 Ct. BCW Half Dollar Coin Holder in a BCW Coin Storage Box BCW Coin Holders have Polypropylene film windows - Coin Safe! Box Dimensions - Outside 2 1/4 x 2 1/4 x 9 1/4 - Inside 2 1/32 x 2 1/32 x 9 1/32 Holder Dimensions - Exterior 2x2 Window sized for a 30.6 mm US Half Dollar