Shimano TL BR002 Funnel Bleed Tool For Road BL/ST 7 thread

Blacks

Shimano hydraulic Disc brake bleed funnelKit includes: Master cylinder oil funnel with base and oil stopperM7 thread for direct attachment to road BL/ST'sShimano recommend that you only use genuine Shimano hydraulic mineral oil in Shimano hydraulic Disc brake systems

Amazon

Increased volume Durable material, long service life Suitable for shift / brake lever (ST-), M7 x 0.75 Version M7