ONBOOK Pen

• Fits perfectly!
  The cleverly formed ONBOOK fits perfectly down the spine or cover of a note book. It will not stick out, slip or fall off.
• Available as ballpoint pen and mechanical pencil, which differ by a fine button at the body of the ballpoint pen to retract the lead.
• Both versions are available in three beautiful soft colours.
• Refillable
  Almost unworthy mentioning that the ONBOOK is refillable. Just turn the tip and replace the refill.

>> ONBOOK Mechanical Pencils
>> Refills