Portal Bookends for Heavy Books
These heavy duty Portal-themed metal bookends has been scientifically created to hold heavy books during test experiments. Fair warning: it may throw your heavy books into an endless portal loop.
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Specifications
Test subject description: Place the bookend with the orange entrance on the left side of a row of books, and the bookend with the blue entrance on the right. The “effect” is that your books (or DVDs, games, disks, tapes, etc.) will stand upright on your bookshelf. Call it a portal experiment!
