EASY ASSEMBLY – These straight tracks easily snap-together, creating a locking mechanism that ensures tight connections are made PATENTED DESIGN – Our patented center half-pin allows for track orientation in either direction without the need for moving pins from one end to the next 4 PACK OF TRACKS PROVIDE DESIGN FLEXIBILITY – These tracks give you greater design flexibility with your current set up; They have two terminal sections available under each piece to allow for transformer and/or accessory power connectors to be added PRODUCT SPECIFICATIONS – 4 pack of Fastrack 10” straight tracks; O Gauge train sets only ABOUT FASTRACK – FasTrack products are designed with a fantastic prototypical look; Their easily assembled products can be used in an infinite number of designs; These high-quality products ensure reliable performance for your trains