up & down keycaps need replacement
I'm a teacher with 24 magic keyboards in my lab, and 8 of the up & down arrows have little hooks that easily break! I tried to find a replacement for those keys but they are not sold anywhere. Buying new keyboards because of that would be incorrect. Nothing in my lab is missing or broken. I think that these keycaps don't have the correct design to last. Where can I buy a replacement for these keycaps? Please help!
iMac 21.5″, macOS 11.6