The #34 Kadee Magne - Matic Coupler is a top - notch product for HO scale model trains. This kit includes two pairs of short 1/4 underset couplers with #233 Draft Gear Boxes. It features a robust plastic insulated coupler, a #621 Torsion Centering Spring, and an insulated #233 Draft Gear Box. The 30 - Series Kadee Magne - Matic Couplers offer great flexibility in body mounting. You can mount them above or below the 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 placed between the Coupler Spring Lid and Draft Gear Box, either above or below the coupler shank. Each package contains two pairs of these high - quality couplers.

Using this Kadee Magne - Matic Coupler is easy. First, decide where you want to mount it on your HO scale model train. You can choose to mount it above or below the mounting platform. If you're using the Draft Gear Box Lid, you can place it on the top or bottom as you like. Make sure to install the #621 Torsion Centering Spring between the Coupler Spring Lid and Draft Gear Box, either above or below the coupler shank. When handling the couplers, be gentle as they are made of plastic. To keep them in good condition, clean them regularly with a soft, dry cloth. Avoid using harsh chemicals as they may damage the insulation. Store the couplers in a dry place when not in use to prevent any corrosion or damage.