Series 428 artissimo quill uses da vinci maestro kolinsky red sable, absolutely the best * Generously sized and hand shaped, its unique point allows for full strokes across the paper * These brushes satisfy every demand in watercolor, gouache, calligraphy and indian ink painting * Certified green manufacturing with sustainable wood handles, Quill is expertly wrapped with copper wire * Handmade in germany at our family owned factory since 1890