








💧 Paint Brilliantly Anywhere, Anytime!
The SAKURA Koi Water Color Brush 9-ml Tank features a compact, two-part design combining a fine, flexible brush tip with a 9ml water reservoir, enabling seamless blending and shading on the go. Its ergonomic grip and small size make it ideal for artists seeking precision and portability without compromising control.





Y**N
Useful brush
I have been enjoying using this brush. I like that it is tiny and good for smaller detailed work.
N**R
Good Brand!
I like this brand a lot. I have purchased many over the years. Well shaped brushes and good water control! I appreciate that the different barrel (tank) sizes can be swapped with the different brush sizes. This is great for carrying them in different sized travel paint kits. Although the little stoppers seal well, I wish there were a better way to store them when not in use, OR that I could buy extras. I always manage to lose some over time. Nice Quality!
C**K
Fits in the Koi 36 color palette
The small/4mL size fits in the Koi 36 color palette so everything can be self contained. It is about half a centimeter too long to fit in the 24 color palette, unfortunately. I ordered the small size bristles and feel like it distributes a little more water than I prefer. Going to try getting the medium 4 mL instead. Like others have mentioned, it’s right loosey, lefty tighty. I am used to it and think it’s funny.
R**E
Best little water brush I've ever used!
I absolutely love these little water brushes. They're cheap, easy to use, and do their job beautifully! I like that there is no button or pump mechanism, you just squeeze the barrel and out comes the water. They're great for watercolor pencils, woodies, inktense or the like. They make outlining of sentiments smooth and quick. And they don't cost a fortune per brush. All in all very happy and eager to continue using these brushes.
R**N
It works
Used it for a couple years, hold water well
A**X
Wonderful Water Brush
It's compact and portable. It hasn't leaked since I got it. It's easy to fill and use. I got this at a great price. (Though I did wait for a price drop.) It cleans easily so you don't get any muddled colors. What more could you want in a water brush?
L**Y
Short Barrel
I bought this pen as a replacement for the pen that came with my Koi Sakura watercolor set- my parrot ate it for lunch. The pen that came with that set was great. This is the same quality, but the barrel is about a thrid smaller at least. Its shorter than most pens so it's a bit awkward. I'm pretty disappointed in the size. I wish I could just buy another barrel!
A**R
Didn't know these existed..a great idea
I bought a Sakura Koi watercolor set, planning to take up some urban sketch using pen and watercolors. I knew ( and still know) precious little about watercolor painting. But the water color set came with a free 9-ml. tank watercolor brush. I started playing around with it and was amazed at how much more portable and convenient it made a set of traveling watercolors. I bought two others, one smaller and one larger than the one that came with the watercolor set. They were inexpensive, simple to use, and of excellent quality. The brush points held their shapes, made applying water colors extremely controllable, and were easy to rinse pigment out of. A heck of a good idea!
Trustpilot
1 day ago
4 days ago