HO EZ 9″STRAIGHT BULK 50. Bachmann’s exclusive E-Z Track system makes set-up quick, easy and fun. Steel Alloy rail. Black roadbed. E-Z Track System – Snaps Together, Stays Together on Floors, Tables and Carpets. Bachmann’s exclusive E-Z Track system makes set-up quick, easy and fun. Steel Alloy rail. Black roadbed. E-Z Track System – Snaps Together, Stays Together on Floors, Tables and Carpets.