Tingley 1150 winter-tuff ice traction spikes, black, studded outsole, lg winter-tuff ice traction spikes – help prevent slips and falls on ice and snow packed surfaces. If you walk or work on ice or snow, you want to be sure to avoid a slip and fall injury. 20 carbon steel studs dig into slippery surfaces to help keep you safe. Ideal applications: transportation, utilities, dot’s, municipalities and general industry. Warning: not recommended for use indoors. Studs can scratch floor surfaces.