AOOKMIYA HOLBEIN ARTISTS GOUACHE 48 colors opaque Acuarela split 0.5 / 1 four seasons spring, summer, autumn and winter split watercolor AOOKMIYA.COMGouache pigment cracking after heating is very serious, just like in the picture, this is a normal phenomenon, not a product problem, does not affect the use of 0. 5ml grid size is 15X11X5mm 1ml grid size is 19X16X5mm 2ml grid size is 19X16X10mm The water powder is squeezed out of the original tube, the water powder is very easy to crack after squeezing out, the heating process will also have the phenomenon of dry shrinkage, but it does not affect the