Sprung ground throws are designed to be connected directly to the turnout taking advantage of the internal stainless steel springs. Sprung ground throws are designed to be connected directly to the turnout taking advantage of the internal stainless steel springs. 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.