This ready-to-run N Scale ACF 39′ 2-Bay Center-Flow Covered Hopper with Round Hatches from Micro-Trains(R) is based on cars built beginning in the 1960s, making it ideal for your diesel-era freight into the 2020s and beyond. Covered hoppers such as this are used for hauling grain, fertilizer, frac sand and other bulk, granulated materials. This covered hopper features free-rolling Delrin(R) trucks with contoured axles, truck-mounted Magne-Matic(R) couplers and interior weights. Cars also include thin-profile foot stirrups, brake wheels and fine decoration. This ACF 2-Bay Center Flow Covered Hopper is one of many Micro-Trains N Scale freight cars. WARNING: This product can expose you to chemicals including Bisphenal A, which is known to the State of California to cause cancer and birth defects or other reproductive harm.