I want a bike chain ring guard like picture. - $1 (Visalia)

I want to buy a bike chain ring guard as in picture (flat 4 spoked silver part).
For Shimano c201 crank set with 4 screw holes at 6 1/2" across the center line, bolting on through sprocket (back side).
Ignore the black around outside edge, it's tape for my temporary repair.
Call 559) 786-358six