This Athearn RND3189 set features a 4 - pack of 3 - dome tank cars in HO scale for NATX. The model comes with many great features. It has a separately applied brake wheel, wireform safety handrails, and machined metal wheels with RP25 contours. The highly - detailed, injection - molded body is both painted and printed for a realistic look. It's weighted for optimum performance and fully assembled, so it's ready to run right out of the box. The minimum radius requirement is 15 inches. Tank cars are specialized equipment in the rail industry. Their interiors may be lined with special materials to protect the cargo. They are grouped by type rather than cargo. Cars for chemicals or dangerous goods are made of different steels based on the cargo and pressure. The tank heads are stronger to prevent ruptures in accidents. The coupler style is McHenry Scale Knuckle, and it's recommended for users aged 14 and above with no assembly required.

Using this Athearn RND3189 HO scale tank car set is easy. Since it's fully assembled, you can just take it out of the box and start running it on your tracks right away. Just make sure your track has a minimum radius of 15 inches. When handling the tank cars, be gentle with the wireform safety handrails and the separately applied brake wheel as they are delicate parts. For maintenance, you can use a soft, dry cloth to clean the body. Avoid using any harsh chemicals that might damage the painted and printed decoration. Store the tank cars in a dry place away from direct sunlight to keep them in good condition. If you notice any issues with the wheels or couplers, check for any loose parts and gently adjust them. Remember, this set is recommended for users aged 14 and above, so keep it out of reach of younger kids.