Sarasa customizable pen. A multi-function ballpoint pen featuring Snoopy illustrations, with a clear body that allows you to see the remaining ink. The holder and refills were sold separately. The 5-color holder came with a 0.4mm red ink refill already installed. Ink colors: Black, neon yellow, neon pink Blue-black is not a Sarasa refill (I apologize for my vague memory), but it contains a Zebra refill. Stored at home. Thank you for your understanding. Thank you for looking.