Our World's Greatest Hobby First Railroad Track Pack contains all the track you need to build the 4' x 8' layout featured in the included DVD, Building Your First Model Railroad. Hosted by actor and model railroad enthusiast Michael Gross, the easy-to-follow video will quickly get you on track for fun. Complete Track Pack Allows You to Build a 4' X 8' Train Layout E-Z Track System - Snaps Together, Stays Together on Floors, Tables & Carpets Set Up is Quick, Easy and Fun - No Nails, Screws, or Special Tools Needed Steel Alloy Rail with Black Roadbed HO Scale 1:87 - Modeled From AAR Track Engineering Dimensions Easy to Use For Both Temporary and Permanent Train Layouts.