Transfil 10 pack 4mm gear ferrulecoming equipped with a high grade alloy construction, this pack of 10 gear ferrules provides fantastic strength and durability on your ride. Ideal for when it's time to service your gearing set up or upgrade your existing ferrules, this pack is specifically designed to fit 4mm outer gear casing for smooth performance. Transfil has also equipped these with a hard anodised finish, which offers additional protection against corrosion so you can enjoy reliable gear operation in all weather conditions without worrying about the elements. One final highlight is this pack is available in a range of colour options to choose from, so you can add some extra style to your ride.the transfil 10 pack 4mm gear ferrule is made from the highest quality materials. Transfil's technology comes from the research, innovation, and production of the control cables they produce for the french car industry. Their bicycle brake and gear cable accessories, end caps and ferrules are among the most reliable and dependable on the market.features material high grade alloy finish hard anodised with various colour options to choose from compatibility to fit 4mm outer gear casing ferrule size 4mm number of ferrules 10 packmanufacturer's part number kb65g gold m 10 pack kb65k black m 10 pack kb65r red m 10 pack kb65s silver m 10 packbuy transfil components from chain reaction cycles, the world's largest online bike store.