Use the copic refill booster to aid in adding various ink to COPIC markers. COPIC Refill Booster's come with instructions. To watch a demonstration on how to refill your markers using different methods please go to: COPIC Marker How-To Page3 Boosters per package
**Please Note: Due to Copic policies, Copic Markers will only be shipped within the United States and Canada, excluding the island of Oahu. Please do not include these items in orders to be shipped outside these areas, they will be refunded promptly. Thank you for your understanding.