Art Supplies › Medium Refillable Waterbrush Pen O2 Single Medium Refillable Waterbrush Pen O2 Single £2.97 Watercolour Brush Pen With a refillable reservoir Great for painting on the moveMedium Get notified by email when this product is in stock. Sign up to receive news and updates. Add To Cart Added! Watercolour Brush Pen With a refillable reservoir Great for painting on the moveMedium Reviews Reviewer Name Review Date Star Rating Description Posted on Etsy Product Show More You Might Also Like Foam Brush 75mm bag of 12 £4.95 Hake Brush Set of 4 £16.83 Hogs Hair Educational Brush Pack Flat Size 4 Box of 50 £16.83 Professional Vegan Synthetic Sable size 00 £2.28 Golden Synthetic Brush Pointed - Size 4 - Pack of 10 £14.36