The Threadless Nut Setter is used to install the star-fangled nut found on 1 and 1-1/8 inch threadless headset systems. Thread the nut onto the TNS, insert into the fork stack, and tap it in with a hammer. Sets the starfangled nut to 15mm and keeps it straight. Long handle helps prevent pinched fingers. Weight: 1.6 lbs (725 g) Starnuts not included.