Bring your Calligraphy skills to the next level with this classy box set. Comes with 3 different sized interchangeable tips, disposable ink cartridges, and a refillable ink pump. To use, rub nib on damp paper towel to get ink flowing. To replace cartidges or refill pump, unthread nib and remove old cartridge/empty pump, insert new cartridge or ink refilled pump, thread nib back on.