The Bachmann HO Scale E-Z Mate Mark II Magnetic Knuckle Couplers w/ Metal Coil Springs fit most HO scale locomotives and rolling stock draft gear boxes (coupler pockets). These couplers are used on the Bachman Silver Series, Mantua and other HO scale rolling stock. Center Shank - Medium size. Comes with 25 pairs.
Bachmann E-Z Mate couplers operate with a standard metal "glad hand" and under-track magnet, and they are completely compatible with all magnetically operated knuckle couplers on the market.