The #35 Kadee Magne-Matic Coupler in HO scale is a high - quality plastic - shank coupler. Each package includes 2 pairs. It comes with a very strong plastic insulated coupler, a #621 Torsion Centering Spring, and an insulated #233 Draft Gear Box. The 30 - Series Kadee Magne - Matic Couplers are versatile. They can be body - mounted either above or below the mounting platform, with or without the Draft Gear Box Lid, and the lid can be on the top or bottom. The 30 - Series Torsion Spring should be installed between the Coupler Spring Lid and Draft Gear Box, and it can be placed either below or above the coupler shank.

Using this HO scale Kadee coupler is straightforward. First, decide whether you want to mount it above or below the mounting platform. You can choose to use the Draft Gear Box Lid or not, and place it on the top or bottom according to your preference. When installing the torsion spring, make sure to put it between the Coupler Spring Lid and Draft Gear Box, either above or below the coupler shank. As for maintenance, keep the coupler clean. You can use a soft brush to remove dust and debris regularly. Avoid exposing it to extreme temperatures or rough handling to ensure its long - lasting performance.