SODIAL(R) 22.5cm 4 Section Telescoping AM FM Radio Antenna 3.5mm Plug Product Name : Telescopic Antenna; Sections : 4 Sections Unstretched Size : 84.6mm / 3.3"; Full Length : 225mm / 8.8" Max Diameter : 4.3mm / 0.16"; Mounting Hole : 3.5mm