S U R & R s full selection of 1 4 brake tube nuts Stop wasting time drilling cleaning or hunting for the proper tube nut Simply grab the proper fitting out of your kit and reorder when needed Features 1 4 Metric and standard fittings included Fittings conveniently available whenever you need them Packaged in a durable portable carrying case Works with S U R & R s ULTRABEND Tubing as well as stainless coated and steel tubing Specs Fittings Material Steel Flare Seats Inverted and Bubble