da Vinci Watercolor Series 5506 Restauro Retouching Paint Brush, Round Kolinsky Red Sable, Size 0 (5506-0) Restauro is shorter than the traditional round and longer than a spotter/retouch brush The "in between" length perfectly combines the benefits of each brush for excellent control With a triangular, ergonomic handle for hours of precision work with no hand cramping Originally designed for the Restoration department at The Uffizi Museum in Florence Certified green manufacturing at the da vinci factory in germany