Size: Male adapter: 0.75*039*0.87inch(L*W*H) Wire length: 4.72inches Female adapter: 1.34inches(L*W*H) Wire length: 5.51inches Application for cars: Digital radio broadcasts The tv display An interactive safety system Gps navigator system Multimedia entertainment system Auto diagnostic cable tool, can be used to close the optic ring and bypass the useless equipment, suits for Benz Audi Mercedes BMW VW Porsche. Package content: 1* male fiber optic loop adapter 1 * female fiber optic loop adapter