A WORKBENCH TAB
Fit references

Two 13 inch notebooks do not establish the same keyboard mold
Use model family, year and physical layout instead of screen size alone.

A model identifier is useful;your serial number stays private
Use Apple’s family reference without collecting device identity.

US English printing and US/ANSI physical layout are different fields
Do not infer a molded fit from the language printed on the keys.

The year 2020 includes different MacBook Air families
Separate the M1 model from the Intel Retina model before selecting a cover.