Princeton Neptune Watercolor Brush - Aquarelle 3/4 inch Princeton Artist Brush Co. from $14.88 $36.25 Qty. Add to Cart SKU: PB4750AQ-075 This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Neptune Faux Squirrel Aquarelle 3/4" Flat Brush with sea glass handle. Tweet