To be fair, you can't really tell what's holding the MacBook Pro in the above photo, but it reminds me a of a metal file sorter kind of like this one. (Alternatives: solid grey steel and metal mesh .) ...

Spring Cleaning 10’s File Sorter tool. Other tools include a movie finder that can identify 17 common video formats including QuickTime, Windows Media, MPEG, Flash, AVI, and others.

Find a home for narrow, hard-to-store kitchen items like cutting boards, lids, and cookie sheets with a vertical file. ... metal file sorter placed on top of a metal, ...