READ FIRST BEFORE PURCHASE IMPORTANT INSTRUCTION and introduction:
Kuretake Karappo Pen was created to be used with water-based ink colors that allows you to customize your own color. Each Karappo pen comes with an empty core. To use, simply dip the core inside your favorite water-based ink color, wait until the ink soaks up the core to 80% (do not soak till the top to avoid spilling when capped), remove excess ink on paper towel, place the core inside the pen, plug the pen with the provided seal (tight to avoid spilling but not too tightly so reopening it for refill is possible), and your Karappo Pen will now write with your favorite ink color!
You can use our Tramol Fountain Pen ink (no glitter) with this pen, darker color for better visibility, without glitter to avoid blockage. You can also use any water-based fountain pen ink that you have. We do not recommend any other ink, we are not responsible for the loading of inks other than water-based fountain pen inks.
Important Note: Manufacturer states that this is a disposable and non-refillable pen. However, it has been known to be possible that it could be *refilled.
Do not cap the seal too tightly so refill is possible. Once the ink runs out, the seal in the back of the pen can be removed to refill the core (with a pair of skillful hands and tool like small thin flat screwdriver).