The Exotek B6.3/T6.1/SC6.1 Aluminum Rear Ball Stud Mount is a 2 color anodized 7075 alloy rear ball stud mount for the B6.3-B6.1 T6.1 and SC6.1 series. Featuring a stealthy black polished base with blue chamfered accents, these go great with the stock plastic or after market blue parts.