Cforce Mini press on gears.
Allows you to quickly change the size of the gear on your motor from the stock 40t to 50t or 60t.
Simply pop on your motor and change the teeth count, good for those hard to reach iris rings on some builds.
https://www.thingiverse.com/thing:4939967
40t -> 50t
40t -> 60t (offset to clear motor)
MW