On the eBay listing, it said this was for a Fit: Vendor is sportwing.

http://www.ebay.com/itm/271810076607?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
So without opening the package, I mocked up the guard from cardboard:


Curvature shows it might fit:



But I would have to bend it to fit:



UPDATE:
There was a defect on the item :


Luckily, I didn't open up the package. I filed a dispute with PayPal, sent the piece back, and got a full refund.