Kadee HO Scale #147 All Metal Self-Centering "WHISKER" Coupler Medium Underset Shank 

2 pair

The #147 Coupler may be mounted with supplied draft gear box or with manufactures cast-on coupler pockets.

It is not recommended to use a metal coupler directly on a metal surface or in a metal draft gear box to avoid the possible electrical crossover or shorting that may cause damage. Use the provided insulated draft gear box.