TOUCH TWIN brush markers are alcohol-based, double-ended markers, with a brush and broad tip on each end. They are odorless and have the finest control of ink flow, with absolutely no smudging or bleeding. Its ergonomic design ensures a comfortable grip. Now available in customizable sets of 36. Mix and match colors and marker models. You can have brush-broad and fine-broad markers in one set! All marker colors are refillable.