ROSEMARY & CO Reversible Pocket Brush - R1 - Pure Kolinsky Sable - Pointed Size 6 (3.9 x 20mm)ROSEMARY & CO is a family run business in England that makes these fantastic travel brushes for watercolour artists. Each brush is housed in a stainless steel case that you reverse out to make the handle of the brush and then close back up to protect the hairs when not in use. Pure Kolinsky hair is the premium hair for watercolour brushes, known for its snap and spring, and water holding capacity. The R1 is a small round (size 6) paint brush, good for