Today i noticed that my wipers do not work to well anymore. I know i cleaned them a few days ago because i washed the car not to long ago. So i went to Walmart and wanted to try out the Michelin wipers. So i look at the catalog, and it says that the drivers wiper is 20mm and the passenger is 19mm. Then i looked at Anco brand, which seems to be good, and they say that i need both sides 19mm. So i got Anco instead because 20mm seems to long. Has anyone ever ran into this before? Is this a typo or the info is correct?