BCW 400-Count Storage Box for Trading Cards | 200 lb. Test Strength 4 Ct. 400 Card Storage Boxes Holds about 350 standard 20pt trading cards Holds about 560 collectible gaming cards Brilliant white High quality Dimensions Exterior: Front (7-7/8) Side (3 x 4-1/8) Interior: Front (7) Side (2-3/4 x 3-3/4)