writing instruments linear icons set. pen, pencil, marker, highlighter, ballpoint, gel, rollerball line and

vector icon line sign pen pencil marker highlighter ballpoint gel rollerball fountain mechanical calligraphy dip chalk charcoal pastel crayon quill brush slate typewriter stylus tablet sharpie felttip fineliner whiteboard graphite lead ink crayola staedtler fabercastell sharp pilot uniball bic cross lamy watercolor acrylic oil eversharp edding artline zebra