Princeton Neptune Watercolor Brush - Quill #8 Princton Brush Co. from $29.98 $63.95 Qty. Add to Cart SKU: PB4750Q-8 This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Brush head is Approx 9/16" Wide and 1-1/2" long. Handle is 7-1/2" long. Tweet