Snap-Fit E-Z TRACK® 18” RADIUS CURVED TRACK (4/card) - NICKEL SILVER Rail With Gray Roadbed - HO Scale. Bachmann s exclusive E-Z Track system makes set-up quick easy and fun. E-Z Track is designed to Snap Together and Stay Together on Floors Tables and Carpets. This product features Nickel Silver Rail with Gray Roadbed. 18” Radius Curved Track is the basic curve of the E-Z Track® system. It can also be placed on the inside of 22” radius curved E-Z Track® for double-track mainline realism. Four pieces of track make up one-third (120 degrees) of a 36” diameter circle. 18 inch Radius Curved Track