The water brush is our favourite tool for pan watercolours, tube watercolours, ink and watercolour pencils and we are delighted that Staedtler has now brought out a beautiful quality water brush.
 
The flat tip brush is not pictured in the photograph sorry - it is new, and I'll add photos when they come through.  The flat tip is approx 7mm wide.
 
We really like the flat tip water brush!