Tombow OnBook Clip Friendly Ballpoint Pen - 0.7 mm - Turquoise Blue Body

If you've ever taken a pen on the go, you know how important different attributes of the pen affect its carrying convenience. The strength of its clip, shape, size, etc. can all determine whether or not the pen stays with you by the end of the day. The Tombow OnBook addresses exactly that issue with its handy-dandy (and don't forget friendly) ballpoint pen. The pen features a strong, thin metal clip that is able to fit into narrow spaces.

The pen protrudes a mere 2 mm above the clip so that it won't snag or hit things.

The body is slightly triangular so that it will stay flush against your notebook or book without rolling.

A variety of body colors in pencil and pen styles are available.

Instructions for Changing Refills
In order to change refill for this pen, one needs to unscrew the top part (tip end) of pen to expose the refill first. Then, one needs to grab the refill to pull out the old one, and insert and push the new refill into position. If the refill is not pushed in, one won't be able to screw the top part back on.