Koi Water Color Brush 9-ml Tank, Medium Round Brush 39122

You get what you pay, and these water brushes are WORTH IT These are the best quality water brushes available. I’ve cleaned them when they get “clogged” - a process but can be done. These are the only water brushes that I grab for when at home or on the go. I’ve tried other water brush brands but keep returning to these. The bristles actually hold pigment. The water is easy to control at a squeezes. They don’t leak. They are easy to clean (when you don’t leave them alone for months). They are easy to refill. They are easy to use. I’ve had some of these water brushes for years. Bought new because I keep wanting them in different places! I don’t want to use the other brand water brushes because they just don’t work as well!

When I started using my travel watercolor set, I wanted to carry around with me a brush that was easy to maintain (meaning, me not having to bring a small water cup to clean). Then I found this little gem and I couldn't be happier. The size of it is pretty convenient to carry around and its easy to clean. I mainly use this for small little illustrations in my sketchbook and its done its job pretty well (If I wanted to do more serious watercolor paintings, I'm not sure I would use this brush.. but it still does a great job for my small doodles). It carries a pretty decent amount of water and I'm able to do quite a bit of painting before I need to refill it (if you want an even smaller water brush to carry, there is also a 4-ml water tank). I'm also able to get pretty decent line quality with it. Although my only gripe with this water brush is that it leaks more water than I'd like.. but a simple dab on a paper towel will fix it. If you're looking for a decent water brush that can be carried on the go, I think this one is a good place to start.

This water color brush is terrific, just what I wanted. It holds enough water for me to use it easily ( while using my lap desk in my easy chair at night while watching TV) without getting up to refill it. Also, the nylon tip is small enough to get into corners-such as flower tips and leaves. The brush comes apart by unscrewing the tip from the bottom water holder and makes it ideal for travel. I did have one small issue about the waterbrush, however. The water holder has a plug that you have to remove in order to use it. Since I easily misplace even large items, I just didn't know what to do with this 1/4 inch (about) sized plug. It was fortinuate for me to have ordered a watercolor box in the same order and my solution was an easy one. I placed the plug in the far left well next to the lid and taped over the well with clear tape. Now, when I'm not planning to water color with it for awhile, I can easily remove the clear tape and pop it into the holder. Easy peezy.

Overall, it’s a well made product but I find it difficult to get any consistency in terms of the amount of water released onto the brush. It will definitely be very convenient for traveling, which is a huge plus, and the bristles are smooth with good snap. You can achieve good blending, but unless I was traveling, I wouldn’t use this in favor of traditional brushes. It’s just not as effective.

The #6 medium brush is my favorite to use. I have a collection of five medium Koi Watercolor brushes that I paint with as I travel throughout the city of Denver. The water seems to flow best with the #6 brush size. I like to paint with watercolors &gouache with this brush on watercolor paper, claybords, and aquabords. I have tried the small and large Koi waterbrush sizes- the small brush squirts out too much water too quickly and is hard to handle. The larger brush seems to have trouble getting the water to flow at all, and when I squeeze too hard it sometimes squirts out and drowns out the painting that I am working on. If you want a water brush that is durable and easy to use with consistent water flow, I recommend the Koi brush in the #6 medium size. I tried another brand's waterbrush once and it was just not the same... go with Koi if you want to try waterbrush and painting watercolor & gouache on the go.

DO NOT BUY the tank will get stuck to the brush head which will leave it useless you will not be able to refill the basin. Its a shame because the brush on this is wonderful.

I'm relatively new to watercolor pencils but after using them I found that a water brush is an instrumental tool to have. I have the medium size brush and I love it, I can use it for detailed work on an illustration or for broad stroke work on larger areas. Some water brushes (I have one from another manufacturer that I don't use anymore) have a hard time controlling the flow of water onto your paper but the Sakura brush seems to be much easier in controlling the flow.

This little brush is very handy for watercolors on the go. It has a nice little stopper in case you want to fill the reservoir and then cap it off for traveling. The brush is nicely shaped and comes to a nice point. Very happy.

They're pretty good. Just be careful not to put too much pressure on the nib.

so freaking cool! you get some really interesting effect with this brush!

Fácil uso, muy cómodo, difumina muy bien el color, me gusto que tú moderas el flujo del agua por lo que lo hay derrames, ahora buscaré el punto fino 😊

Fast delivery (prime) Very nice, fun to play around with, works well with watercolors & watercolor pencils, long water barrel, has a cap holder, water barrel has its own little black cap to prevent spills, brush screws on counterclockwise, water regulator works properly, transparent barrel & clear case around regulator allows for you to know when to refill and see in case there are any problems with leakage, bristles do get stained but stay at a fine point, can cover small & large areas, soft push for water to flow - easy to clean bristles & switch colors, small & compact - perfect for travelling artists or even at home/in the studio. I'll probably only use it with watercolors so it doesn't get clogged with other media. The painting was done in my sketchbook using cheap watercolors (paper will wrinkle if not suited for media)

Works as it should