I can't say how the fit is on the id of the outer spring (can't tell for sure from the pic), but the od only needs to be a minimum of the springs mean diameter (middle of the coil), Much larger than that is just added retainer weight, but they have got to be tight on the id to be that small...
My comment wasn't based on the OD of the spring being larger than the retainer; the retainers are shifted over to one side of the springs (inconsistent overhang around the perimeter of the retainer) which tells me the retainer fit is really sloppy on that spring.
