Slidebar travel of 0.165" makes these usable for both HO and N scale. The SPDT contact can be used to power a turnout frog, a signaling system, or a relay coil. Rigid ground throws require the modeler to make a spring to take up the overtravel. This throw was designed for situations where there is trackage, building, or scenery in the way of using our sprung stand. A shim to raise the stand to tie level and five different end fittings to connect to most turnouts are provided: hook end for Atlas, blade for Roco, hole for PECO, small round pin for Micro Engineering and round pin for Shinohara and others.