Shimano Tl-BR003 Funnel Unit For BR The TL-BR003 oil funnel with oil stopper for brake lever with M5 thread – For bleeding Shimano MTB hydraulic disc brake systems. For MTB brake lever (BL-) Version M5 thread Enables easy and secure bleeding operation Convenient clear funnel and pedestal Compatible with all hydraulic Shimano MTB / trekking disc brakes with one-way bleeding