Screw In Tire Studs (S.I.T.S.) - CanadianChains.ca
Screw In Tire Studs (S.I.T.S.). Carbide-tipped traction device for icy conditions! SITS come in various lengths that are inserted into the raised tread of a tire, leaving the head of the stud slightly protruding, thus providing traction with the driving surface.
