Extra-light segmented aluminum housing, stainless steel cables, fiberglass reinforced Teflon liner. Compressionless design eliminates flex, resists kinking. Each kit will complete two cable/casing applications of your choice. Kit includes: 2 casing sets, 2 derailleur cables, 2 brake cables, 2 derailleur liners, 2 brake liners and necessary service parts to complete either 2 brake applications, 2 shift applications or 1 brake and 1shift application.