Perfect for do-it-yourself and custom track projects, WalthersTrack Bulk Rail can also be used with various Cornerstone Bridge and structure kits, available separately. Other features include: Matches rails used on WalthersTrack Code 70 products Fits mounting points on Cornerstone HO open deck bridges and other structure kits, each sold separately) Great for do-it-yourself and custom track work Custom-formulated nickel silver rail for outstanding electrical conductivity Each includes 17 sections per pack, each 36′ (0.9m) long - 51′ (15.5m) total Check out WalthersTrack and accessories here!