The largest rounded cap in the line closes a 2" OD run with the same press-fit seating as its smaller siblings, its soft dome reading as a finished detail at the end of a stair, cap-rail, or balcony run. Offered in polished brass, 304 polished stainless, or 304 satin stainless for .050" wall tubing, it suits a traditional brass rail, a brushed stainless interior run, or a restored period railing at the larger size. Purely cosmetic — a rounded face capping the tube end, with no load or structural role — it lets the whole 2" run share one finish.