This ultra-fine gel pen has a body that holds up to 5 refills to allow acess to a variety of colors at once. This pen tip is 0.3 mm to fit more writing into the smaller graph paper lines in the Hobonichi Techo and Hobonichi 5-Year Techo.



The pen body is clear to allow easy viewing of the colors currently installed. The pen has a non-slip rubber grip made of rubber. The pen can be opened with a single hand, making it easy to change out ink refills.



The refill set includes a total of 10 colors, including classic colors like black, red, and blue, as well as easy-to-use colors like brown and blue-black and colorful colors like pink and orange.



The biopolymer-based ink hardens as soon as it touches the paper, making it strong against smearing yet smooth despite its extra-fine tip.