You are buying set of 15 OEM used female maxi fuses also known as cartridge fuses shown in the pictures with "0" like element. They are rated 20A, 25A, 30A, 40A, 50A, 60A for Chrysler, Ford, Lincoln, Jeep and Dodge, Subaru, Volvo cars (will fit other makes too). Note, that the fuse mating side does not have any grooves, that side is smooth.