612-061 - Civco - Disposable Endocavity Needle Guides For use with Siemens EC7, EC10C5 and EC9-4 (on SONOLINE G20, G50, G60S, ACUSON X500) transducers, Sterile endocavity needle guide, o-rings; accepts 16-18GA instruments (Ref.# 134-046). Box of 24