This is a dealer-only wiper blade. At this time there are no aftermarkets available. The dealer will know what you need.
It will depend on which MODEL of 2005 Scion you have. See sources and related links below to lookup wiper blade sizes.
The rear wiper blade is a Scion-only part and you have to go back to the dealer for it. See sources and related links below for the front wiper information (which is universal and you can get aftermarket wipers)
The drivers side wiper blade for a 2005 Subaru Forester is 22 and the passenger side wiper blade is a 19. The rear window wiper is a size 15.
The 2005 Scion xB has a 1.5 L base engine size.
The 2005 Scion tC has a 2.4 L base engine size.
The 2005 Ford Explorer takes 20" replacement wiper blades on both sides front and a 16" rear.
The 2005 Scion xB has an inline 4 engine.
The 2005 Scion tC has an inline 4 engine.
The 1997-2005 Chevrolet Venture takes 24" replacement windshield wiper blades on both sides front and a 16" rear replacement wiper blade.
All 1995-2005 Chevrolet Blazers take 20" replacement windshield wiper blades on both sides front. The rear wiper blade is a 14".
This answer varies based on year. 1995-2002 you can get an aftermarket - see sources and related links below. 2005-2011+ is a special rear wiper blade you have to get at the dealer so they will know the size.
Driver 20" Passenger 18" Rear 10"