Ray ban sizing

[maldivemoment]

I think my Raybans are a bit on the small side but can’t seem to find any info re sizing.
Does anyone know what these numbers/letters on the arm mean?

Thank you

https://www.ray-ban.com/australia/c/size-guide

Thank you but that link just takes me to the Rayban site.
I can’t find any info regarding the numbers/letters related to my glasses.

Hmmm, link not working.

Try typing ray ban size guide into google. On the website is a sizing guide which includes a diagram of the frame arm with all the numbers explained.

Also comes up in google images.