Fifty pair per package without Draft Gearboxes
This industry leading coupler features an all metal standard coupler, and #634 standard centering spring. The #58 Magne-Matic "Scale" Metal Coupler may be mounted with the #213, #232, #234, #242 Gearboxes (not included) or with other manufacturers cast-on coupler pockets.
The 158 Whisker Coupler is equivalent to the #58 "Scale" Metal Coupler.
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. Use the provided insulated gearbox or insulated #28 coupler.