It is a simple element, but yet almost essential for any owner of DS / DSi / 3DS / N3DS having several games in its game library. The box is solid, storage compartments are made by "pages" (plastic location, connected by a hinge, but does not seem fragile to much), and locations are for both DS / DSi games for 3DS games and even N3DS (as Xenoblade Chronicle). Another plus is the ability to store in a MicroSD in a case supplied with the box. The packaging is professional, so much so that one wonders if it is not a pure Nintendo product. A buy eyes closed, especially for the ridiculously low price.
Note: The star less is because the brand had more than 24 locations, for those who like me, are a consistent game library.