These Kadee Code 88 (0.088) 33 smooth-back RP-25 wheelsets are a must - have for HO scale model train enthusiasts. They come in a package of 12 and are part # 380 - 530. Smooth wheelsets are a common sight on all diesel - era rolling stock. Kadee® wheel sets are made to the highest standards. They feature an RP - 25 contour, non - magnetic metal wheels, and insulated needlepoint axles. Key features include a semi - scale smooth back, accurate markings, incredible detail true to the prototype, non - magnetic metal wheels, smooth tracking with free - rolling contoured insulated axles, RP - 25 free - rolling wheels, needlepoint axles, and they're suitable for both freight and passenger usage.

Using these wheelsets is easy. Just carefully install them on your HO scale model train cars. Make sure they fit properly to ensure smooth movement. When handling, avoid dropping them as it might damage the axles or wheels. For maintenance, you can use a soft, dry cloth to clean the wheels regularly to keep them rolling smoothly. Store them in a dry place to prevent rust on the non - magnetic metal parts. Also, check the axles from time to time to ensure they remain insulated and in good condition.