Bowser HO Scale Real Coal (or Ballast or Ore) Load 2-Packs are perfect for adding realism to your freight car fleet. Each plastic load fits inside the hopper or gondola. The key to realism on these loads is the plastic base is covered with real crushed coal, ballast or ore. Loads are available for several popular cars. Check out the available Bowser HO Scale detail parts and car loads.WARNING: This product can expose you to chemicals including STYRENE, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov