The extra depth of this storage container allows for storage and organization of larger, bulkier supplies. Use open core or customize up to eight compartments for multiple storage options. Fits inside super satchel cube (6855SC). accommodates serger thread tray (6901AB), paint tray (6828AG) and marker tray (6939AB). all boxes in the super satchel Series are molded in acid-free plastic. All inch standard depth", "slim" and inch double deep" models are stackable. Ideal for organizing and storing art and crafts supplies, small toys, doll accessories, building blocks and Trading card collections. Made in the U.S.A.