Comparison : Item # DF-3498A7, Sprocket Number DF-3498 Flex Bar
Item # DF-3498A8, Sprocket Number DF-3498 Flex Bar
Item # DF-3498A9, Sprocket Number DF-3498 Flex Bar
Item # DF-3498A10, Sprocket Number DF-3498 Flex Bar
Item # DF-3498A11, Sprocket Number DF-3498 Flex Bar