The ink in the black and the blue refill are only document proof in ISO 27668-2

A studio-scale watercolor book engineered for heavy water saturation

consistent output

This brush has a flat shaped brush-tip size 20 (approx

tombow mono ct yt4 correction tape 4 2 mm 10 m Caster The ink in the blackThis correction tape dispenses sideways instead of straight ahead, which keeps your hand from blocking the line you're correcting as you pull it across a small but noticeable difference if you're correcting a specific word or short stretch of text rather than a whole line. The white film goes on flat without scraping or wrinkling and accepts ink right away, so you can write straight back over it with a ballpoint, fineliner, or brush pen without the