The #119 KadeeMagne-MaticCoupler
features a Metal Coupler, insulated #242 Draft Gear Box and Lid with center
screw holes for mounting. Shelfs actually work. The #119 Coupler may be mounted
with supplied #242 draft gear box or with manufactures cast-on coupler pockets.
Two pair per package 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 .