but to extend the life span you can remove the filters from the mask and keep them in a tightly sealed plastic bag when the gas mask isn't being used

5 mm round pump tip

putting down a needle-sharp line around 0

Ink: high-saturation black liquid ink

tombow mono edge highlighter Goog but to extend the lifeThe MONO Edge highlighter has a clear plastic guard wrapped around its chisel tip, which keeps the felt edge from fraying when it's run along a plastic ruler or metal straightedge something an unprotected felt tip wears down on fairly quickly. It's also dual tipped: a 3. 8 mm chisel end for highlighting blocks of text, and a 0. 4 mm fine bullet tip on the other end for small checkmarks or margin notes, without needing a second pen for detail work. The