Velvac 715168 Blind Spot Mirror, Tripod Components are chrome-plated to the same demanding specifications required by the largest truck manufacturers for a high quality, long lasting finish 8-1/2" mirror heads with 12" R.O.C. convex glass feature Velvac's own DuraBall nylon ball joint system, guaranteed for five years against cracking or breaking OE-specific, fixed arm models available for a custom fit on Freightliner Columbia and Century Class trucks as well as the FLD