This one kit has it all. Whether you are working on Foreign or Domestic model cars, you will be able to get the job done right and on time! Each adapter is designed to match a specific manufacturer for easy installation and a leak-proof seal every time. Standard brass fittings to ensure compatibility for all pressure Brake Bleeders. Color anodized caps for easy recognition. Expandable O-Rings guarantees a leak-proof seal every time. Kit comes in molded case for easy storage.