you could just buy an OEM one from mazdaformance or corksport ya know...
I think mazdaformance will have a better price than corksport
the OEM s*** has a large backing sheet precut to the shape of the bottom part of the back doors... it is done so that you can get perfect "factory" sticker alignment on the door
I say it's worth it for the price, proper color, and ease of installation