Exquisite handmade pure Kolinsky sable brushes with an unparalleled combination of softness, spring and snap. Ideal for precision and detailing with unsurpassed feel. Finest hand selected Kolinsky sable sourced from Siberia. One of the coldest climates on earth, it is sourced only during winter, producing the longest, densest and most luxurious hair allowing for the most precise point or edge possible in a brush. Brush sizes – The length and width of brushes given shape and size may vary by brand as brush sizes are not standardized. Most fine art brushes are handmade and as such some variation is expected even among brushes from within a single brush line.