If you have the original arms/blades, you can just buy refills The parts stores hide the refills behind the counter and try to sell you blades instead (more profit for them). You have to ask at the counter for the refills. Don't buy the blades, as most the blades are too tall for any car with hidden wipers. Buying the refills is also about 1/2 or less the cost of buying replacement blades. Looks like the Napa ones are close to original though, but refills are still cheaper.
When you work on Spaceships for a living, how bad can a workday be?