The #705 Metal Coupler will work anywhere a #713 or #714 Coupler will work. This industry leading coupler features an all metal coupler head, shank, and centering spring and comes assembled complete with insulated draft gearbox and lid. The #705 Metal Coupler may be body mounted on any flat surface; HOn3-Scale locomotives or rolling stock. It is not recommended to use a metal coupler directly on a metal surface or in a metal draft gearbox to avoid possible electrical crossover and shorting that may cause damage. Fully Assembled - Not Recommended to be Disassembled.