The brush link : https://amzn.to/3zabyWx
(Amazon affiliate)
Once I bought a hake brush for watercolor painting, basically used for flat washes, but that wasn’t upto my expectation. This brush is very good for flat and graded washes. It can load a lots of water and doesn’t bend after applying colour. You may buy this following the above link at an affordable price.

The reference picture I have taken from one Facebook post. I apologise for not mentioning the photographer’s name and not giving the due credit. Actually I couldn’t remember from whose post, I took the photo, I can merely remember the place, which was mentioned as Kathmandu, Nepal. Nevertheless, I am grateful to the photographer and thanks for your beautiful upload.