Refillable ink that can be refilled and reused repeatedly (renewed by Varios Inks) The shape of the container allows for speedy re-inking, and it can also be stored in a dedicated pouch such as a copic wallet. The ink volume is enhanced for the clarity of the container. You can also use an empty bottle to blend your original ink into a mixture of ink Ingredients: Alcohol dye ink Number of Colors: 358 colors in total. Quantity: 12ml Quantity Refill. Sketch: about 1.8ml per time (about 7 times) Ciao: about 1.4ml per time (about 9 times)