This is a high quality corrosion-resistant fitting for Avid Elixir calipers, Magura calipers MT Sport, MT2 and Formula brakes. M6 threading with a long-lasting rubber o-ring as a sealing surface. Includes: x1 M6 fitting body, x1 olive, x1 shroud, x1 rubber o-ring. One fitting only. Mineral and DOT fluid compatible.