Did you know that Parker Sonnets come in a miniature version? We didn't until this Parker Sonnet Mono Refresh arrived on our doorstep. It is an adorable little pen whose design pattern is called "chisled carbon." Click the headline for a close-up. Twist the nose cone to advance or retract the ballpoint. These actually don't take Parker-style refills. It takes a stick refill! This one comes with a working black refill, and the pen appears to be in excellent condition with minimal wear. 10cm.