PRINCETON Neptune Watercolour Brush - Synthetic Squirrel - Quill Size 8 (14 x 41mm)These are very good quality synthetic brushes and almost comparable to real squirrel. Great at holding water and very soft. This is the Quill constructed with a polypropylene sleeve to maximise the volume of fibre in the brush belly. Designed for water holding capcity, this brush gives beautiful washes over large areas. This brush holds a lot more water than the cheaper synthetics and suits artists who manage excess water well through brush wiping on