Shimano universal olive and insert bh59 bh63the universal olive and insert from shimano are the perfect lightweight replacements for the old worn out or damaged parts on your shimano hydraulic disc brake hose this package includes 1x brass olive and 1x brass hose insert featuresmaterial brassgenuine shimano replacementcompatible with shimano br rs785 br rs505 br r785 alivio br m4050 acera br m3050 br m355a 2 year warranty is offered with all shimano products from chain reaction cycles