Beautiful limited edition custom pens with the theme of 5 planents. The pen body is made of impact-resistant transparent resin. With the exception of Saturn, all pens have a silver ball on the ball-clip ring is plated with bright chrome (where Saturn has matte black), silver nib, and crown-mist etched planet pattern on the cap end. Pens can be filled by dropper, piston-fill converter, or universal cartridge. Ink not included.