Superb Professional Brushes For All Techniques! Experience the precision of Danube Professional Watercolor Quill Professional Range of Brushes only from Creative Mark. Handmade in Germany, these Kazan squirrels tail and synthetic blend brushes feature a long point for controlling linear strokes and detail. With a huge brush belly, these brushes hold a large amount of color and does not leave hair behind. Superb brush response--perfect for watercolorists looking for superior control. The key combination to creating this perfect brush was painstakingly balancing the combination of soft (yet resilient) synthetic fiber hair in specific lengths, and adding the right balance of natural hair. Thanks to new state of the art synthetics, this ideally balanced relationship of the mix works flawlessly and has provided near universal acclaim for the Danube Professional Watercolor Quills. For natural hair, we use the sought-after winter coat of the Kazan Squirrels tail. This hair gets its name from the Kazan Russian Province, native to this animal and the bitter, extreme cold that this thick, strong, bushy coat protects it from. This fullness and coat strength, coupled with modern synthetics, allows the hair in these brushes to stand up to textured watercolor papers better than all others.