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Created these corners to solve the problem of having multiple devices, that would have required multiple cases, in order to hang said device(s) between driver/passenger seat (or on a wall/etc). Especially useful when no one can agree upon who should be holding a device (when the answer is no one should be).
Rubber bands and string not included.
NOTE: The rubber bands work, but tying the corners together results in a more secure hold on your precious devices :) I recommend always using string.