This handy KOI water contained in a case that comes with sponge and palette is designed to allow convenient use. Its light weight is very suitable to use when traveling or during study trip. Its paintbrush is also very easy to use by just removing the black tip and fills water inside the shaft and then twists it. You can paint by gently squeezing the paintbrush and dip it in any color in the case as you wish. You can be certain in the quality of Sakura.