FUNCTIONS The Oil Cooler Line Quick Disconnect Kit provides 7 different sizes tool to removedisconnect fittings on fuel lines, heater lines, AC cooling lines and other quick disconnect couplings. FIT FOR VEHICLES The AC Fuel line disconnect tools are compatible with most Ford, GM, Chrysler and Mazda models. It also fits for some other vehicles while the automatic transmission line is within the sizes. EASY TO USE The compact size is easy to grasp and the angled design allows to access the hardtoreach areas. Place the notch against the fuel line to release the lock and remove it. WHAT YOU GET The Transmission Line Removal Tool set contains 7 kinds of opening size 14 inch, 516 inch, 38 inch, 12 inch, 58 inch, 34 inch, 78 inch. DURABILITY All fuel line quick disconnect heater hose disconnect tools are made of hard plastic to secure the strength and sturdiness.