Shimano Dura-Ace & Ultegra Polymer Coated Brake CablesPolymer-coated inner cable reduces the sliding resistance to achieve lighter and quicker operationStainless steel for anti-rust protectionLow friction polymer material on the cable may cause slippage at the cable fixing bolt after initial pre-stretch for the cable is performed. Fur like material from polymer coating will not affect the performanceApproved by Shimano only for use with Dura-Ace BR-9000/9010, Ultegra BR-6800/6810 & Cyclocross BR-CX70Item SpecificationsUnit of SaleEachWidth1.6mmLength2100mmIntended UseRoadDefined ColorSilver Shimano Polymer Brake Cable Brake Cable UPC: 689228317215