Never got round to using it. Fits the rear of the camera when using an external mic or LED etc keeping everything protected as you have to have the battery cover open. Same as this: http://driftinnovation.com/accessory/drift-rear-silicon-cover/ £10.
Should of said I usually get out and about with work so could possibly meet you a bit closer to suit.
Thanks for the cover Red. Works great - still have not found the best place for the mic yet - prob need a longer one.