Kadee No.5(R) Knuckle Couplers in HO scale. These Magne - Matic(R) couplers come in a kit with medium 9/32 centerset shanks and #232 draft gear boxes. A great choice for model train enthusiasts!

Using these Kadee No.5(R) knuckle couplers is easy. Just attach them to your HO scale model train cars. When connecting cars, make sure the couplers are properly aligned for a smooth connection. As for maintenance, keep them clean by gently wiping with a soft cloth. Avoid using harsh chemicals as they can damage the metal. Store them in a dry place to prevent rusting. If you notice any loose parts, handle them carefully and consider tightening them with appropriate tools.