The Staalmeester® Pro-Hybrid series are characterized by their new, 100% synthetic fibre. This mix offers, apart from its high absorptive capacity, a perfect balance and resistance for easy handling of the paint. The synthetic fibre is supple and soft, so that a stripe-less result is guaranteed. SIZES: No.10 - 1” / 25mm Diameter No.20 - 2” / 50mm Diameter We recommend using a brush soap after each use to keep your brushes in perfect working condition - try our Fusion™ Brush Soap or Dixie Belle Paintbrush Cleaner .