AntennaMastsRus - AM/FM ROOF ANTENNA MAST is Compatible with Scion xB (2008-2015) Fits: 2008-2015 Scion xB Easy Screw-On Installation with No Modification, Cutting, or Drilling Ships from Wisconsin!! 100% Satisfaction Guarantee, Period! Let us Save YOU $$ Over your Local Dealer! Size: Length: 7", Base Width: 0.55"