zebra mildliner brush double ended brush and fine tip pen, assorted colors, 15 count with original vinyl pen case zebra mildliner you can choose 15 colors that are easy-to-see gentle colors even if decorated in a notebook, according to your preference and purpose. this is the same ink color as the zebra line-marker "mildliner". a brush type and extra fine round pen tip can be used with one. it can be used separately when you want to write colors and large letters and when you want to write details.