New 2-piece BCW super vault cardboard storage box. Holds over 400 semi-rigid #1 card holders or about 78-80 graded cards. Holds PSA, BGS, SGC, CSG, and HGA slabs as well as 1/4" screw downs. The BCW Storage Box is the highest quality, most competitively priced cardboard storage box on the market today. They are constructed of white corrugated paper and have a 200 lb. test strength. 17 3/4" x 6 1/4" x 4". Check out my store for other card supplies, Beckett price guides and vintage trading card packs. Thanks for shopping with Back-When-Collectibles.