This storage box measures 11.5x5.75x3.8 inches externally and 11.25x5.45x3.4 inches internally, designed specifically for PSA slabs. Constructed from solid board, it offers exceptional strength, making it two to three times sturdier than standard boxes. The grain texture paper wrapping enhances protection, while raised surface particles help prevent slips. The interior size is perfectly suited for PSA slabs, with additional space to hold cards, penny sleeves, and toploaders. Its sleek black design provides a secure and organized way to store and display your collection. Ideal for professional collectors, this box combines durability and practicality, ensuring your prized items are kept safe. Whether for storage or gifting, it offers a reliable solution for maintaining the integrity of your collection. The internal dimensions are 11 1/4 inches in length, 5 7/16 inches in height, and 3 3/8 inches in width, fitting PSA slabs measuring 5 3/8 x 3 1/4 inches perfectly.