Professional universal brake and clutch bleeding system adaptor designed to work seamlessly with most brake and clutch bleeders. Specially designed universal brake and clutch bleeding system adaptor for easy bleeding of hydraulic brake systems without the need for a specific cap for the vehicle. Feature adjustable chain and dual screw hook mounting system to fit most brake fluid reservoir caps up to 91mm in diameter to ensure a secure and reliable connection. Place universal brake and clutch bleeding system adaptor over the reservoir cap, secure it using the included chain, and adjust it with the two screws to keep it firmly in position. Suitable for use with all brake systems across a wide range of vehicles, providing flexibility and convenience for both professional mechanics and DIY enthusiasts. Manual pressure brake and clutch bleeding system 2L tool (ASTA A-2LBFB) sold separately.