Creality Nozzle Indicators

Do you have multiple printers and do you sometimes change the nozzle size on one or another? I do. And to keep track of which nozzles I have on each printer, I created these printed reminders that easily slide on and off the top top rail guide on Creality printers.

Personally, I only use the indicators when a nozzle other than a standard 0.4mm is in use, but I included a 0.4mm reminder in case someone wants that one, too.

I print the final 2mm in a different color, changing filament at 11.2mm. Each indicator is a relatively quick print, about an hour at around 40-50mm/s. Supports are needed; I use tree.