NOS genuine GM black plastic wheel nut cap.  GM 10028614.  There are 4 pcs remaining in the opened package. This part is long discontinued.   Fitment for Buick, Chevrolet, GMC, Oldsmobile, and Pontiac from 1982 - 2005. 

Check photos for cosmetic concerns before you buy.  Check your VIN for correct fitment at your local GM dealer before you buy.