Jagwire's Universal Pro End Cap Packs contain a complete selection of aluminum housing ferrules and cable end caps (crimps) so that you can properly setup your cables and housing sections and prevent fraying cables. They come in 6 colors for customizing your ride, too. - 4mm for use with solid color shift housing - 4.5mm for use with braided shift housing Each kit includes: - Ten shift housing sealed end caps (ferrules) - Six 5mm brake housing open end caps (ferrules) - Four cable caps (crimps)