Set includes six tools for disconnecting spring couplings on fuel lines. Convenient plastic holder included. Also useful on A/C spring couplings as well as push lock connectors on radiator and transmission lines. Includes six tools for disconnecting spring couplings on Ford®, GM, and Chrysler® A/C lines. Also works on fuel lines and can be used as push lock connectors on radiator and transmission lines. Included sizes are 5/16, 3/8, 1/2, 5/8, 3/4 and 7/8.