Puzzled Tin Robot Planet Pens Resin Writing Pen Enter your model number Above to make sure this fits Why settle for a plain old pen when you can get your child an awesome Planet Pens Resin Pen? Any pen can write but only a Planet Pens Resin Pen can bring a smile to your child's face every time they use it Molded from a durable resin and painted with such detail, you will want to reach out and touch them