Double thickness handles and bottom. Stackable. Plastic Corrugated Materials. Brilliant white color. Holds 250-300 comics. Interior Dimensions (WxHxD): 7 5/8 x 10 7/8 X 27 1/2. Exterior Dimensions (WxHxD): 8 1/4 x 11 1/2 X 28 1/2. The BCW Storage Box is the highest quality, most competitively priced corrugated plastic storage box on the market today. They are constructed of corrugated plastic and have a 250 lb. test strength. Use this box to store and protect all your valuable collectible comics.