Tesla Model Y Michelin wiper replacements from Costco.

The trick to getting these wipers to fit is to remove the plastic cover marked C and underneath it will reveal a B. You just use a screwdriver and pry at the arrow which will allow the plastic cover to slide off. Sorry for the shoddy camera work but I believe the video helps explain the process.
This is the same process for many other types of replacement blades so you might not always have a C and a B. If it's too big to slide in and click, remove the cover from the plastic part.