The Color Write Fountain Pens Colored Ink Refills come with 8 different colored fountain pen refill ink cartridges that work with all OOLY fountain pens.  

Details:

• 8 different ink colors
• Refills work with all styles of OOLY fountain pens
• Suitable for ages 12 and up

Ooly is a women owned company out of Carlsbad, Ca.  They love creating products that help people of all ages smile, explore their imaginations and express themselves.