Looking for Sport Part....

I've noticed on a few Blazers, that appear to be a "Sport package or Add-on"...a Spoiler, that fits over the entire back rear of the Blazer, over the top, and attaches to the sides, half way down....

Any idea where to get these, they appear rare....

TNX

KYCOL

i saw one on e-bay afew weeks back, but i've never seen one installed on a blazer.

do you have a photo?