This is a dock for idevices that can be used without taking the case off of your device. Great for people with OCD since I couldn't stand my phone not sitting perfectly on the old dock, and or having to take the case off.
You thread the cable that came with the phone through it, then tie some knots in the cable so it doesn't slide around, maybe even hot glue it into place. Now you just plunk your iphone down on this thing and you don't have to take your thick fancy case off of it first because the connector can slide back and forth.
I was using poor measurements for the hole that the cable, and connector slide through. They are pretty close (within 1mm) but I would appreciate feedback if there is a problem with fitting the cable through.