Square Reader Symmetric Clip and Protector

Square users, rejoice!
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Are you tired of swipe errors because of your Reader spinning? Well, no more! This clip prevents your Reader from spinning out of control!

In addition to keeping the Reader stable, it also helps protect the TRRS connector, allowing you to throw your Reader into a bag without worry.

This clip works with the current 3rd generation Square Reader released in late 2013, the flat one without the internal battery.

I have tested and can confirm it works with the following devices (without a case, of course):
Samsung Galaxy S III
Samsung Galaxy Note 3
iPhone 4/4S

UPDATE:
Added 8mm version that should fit thinner devices, such as iPhone 5/5S/6/6 Plus, iPad Air, and iPad Mini.

If you find that it also works other devices, please let me know :)

The opening for the device side is 10mm with the hole placed in the center. I am also including the original IPT file in case you would like to widen it to fit your device. Print with support and st