From the official description below: A pen that turns your drawings into 3D objects! The "Rainbow 7 Color Set" is now available for the 3D Dream Arts Pen! It's a magical pen that allows you to create 3D objects by solidifying gel ink with light. It's safe and secure because it doesn't use heat! The "Rainbow Set (7 colors)" is a set of 7 rainbow-colored dedicated pens and an Air Up Light that allows you to draw in the air! Let's create original 3D works! Due to poor storage, the ink has leaked, and the box is dirty. [Will be shipped without the box!] Please purchase only if you agree with the condition of the product.