u/Only_Copy7144

Hi, I'm looking to purchase an eraser pen with a teeny diameter and saw that Faber Castell and Tombow both have options. I trust these brands over others so I'm trying to narrow down between these two. If anyone has one or the other (or both!), which one would you recommend for me? I will mainly be using it for Japanese language study. I use HB and 2B Uni and Pilot leads, as well as NanoDia Color leads. Paper is regular copy paper.

Thank you in advance!