Copic ink refill for Copic Ciao, Sketch, Wide and Original markers. This ink is designed to match Copic marker colors and can be intermixed to create custom shades. The long nozzle reduces ink waste and makes refilling easier. To refill, pull out the marker nib and add a few drops of ink, being careful not to overfill. Copic nib tweezers are recommended for easier nib removal. Each 12ml refill can replenish various Copic marker models multiple times: Copic Ciao markers can be refilled 9 times, Copic Classic markers 5 times, and Copic Sketch markers 7 times. This product is a replacement for the Various ink refills, featuring an extended eye-dropper spout, pen-shaped transparent bottles, and clear capacity gradients for improved refilling convenience.