This Set Of Coolant And Fuel Line Disconnect Pliers Is Designed To Uncouple Quick Release Fittings Commonly Found On Most Vehicles. They Are Made From High-Quality Carbon Steel And Have Vinyl Grips For Better Control. The Set Includes Three Types Of Jaw - Blue For 8Mm X 1/4 And 5/16"; Green For 10Mm X 3/8"; And Red For Special Applications.PTDDRPDIR28625"