The replacement belt is for the toothed pulleys on the V3 AutoThrow. It will not fit the V2 AutoThrow.
This belt does not wear out over time under normal use and you should never need to replace it. If you do need to replace your belt please contact us for instructions before attempting to disassemble the V3 AutoThrow.
This is a standard GT2 size 200mm timing belt, 6mm width.