Managed to get the 2mm leadholder at long last. Now I can swap the colored rings with my 0.3 and 0.5…
Quite sure the 2mm ought to be green.
But yellow and red are kind of interchangeable for 0.3 and 0.5 depending on the era.
Updated: I adhere to Chris’s mandate…
0.3 has to be yellow 
Have you told Pentel HQ? >_<
Pentel’s prevailing color scheme is one of the more grating aspects of pencildom 
Ive almost bought the 0.3 on mercari 4-5 times now… the ONLY thing stopping me is its’ red ring. It matching my 0.5 irks me. I have yet to see a yellow ring available for purchase 
