MSI Focus Graphite 3X18 Bullnose MatteMSI Focus Graphite 3X18 Bullnose Matte is the finishing trim for the parent tile series standard format with the matching face and color of the field tile. Bullnose and trim pieces terminate field tile cleanly at counter heights, window returns, shower curbs, and outside corners without exposing a raw tile edge. The matching finish and body color ensure the trim disappears into the field rather than reading as a separate piece.