FASEP Montagekopf-Schnellmontagesystem (1/4 Umdrehung)1 4 turn system to quickly replace the standard metal mounting head with the plastic mounting head, depending on the type of wheel. Comes with a plastic mounting head and is compatible with all the mounting heads in the Bihr range. Contents: One 1 4 turn male tip to be fixed to the arm of the tyre changer One 1 4 turn female tip to be fixed to the original mounting head One plastic mounting head (standard size 10" to 23"), fitted with a second female