The Maestro designation is reserved exclusively for those brushes manufactured using male winter Siberian Kolinsky Red Sable tail Fur (the rarest, finest and costliest). These are the top of the line, highest quality brushes made without compromise. Da Vinci has a strict policy of never to mix in different qualities of sable hairs which is one method of making Kolinsky Sable or even Red Sable brushes at a lower cost (but also reduced quality). Only 100% Male Siberian Kolinsky Red Sable winter tails are used in series 10. If used with loving care these brushes will last for years and well after cheaper versions have been repeatedly replaced at much greater expense.
The extra sharp needle-like point and longer tapered hair length result in faster action at the tip and the tightest snap at the point. Expect superior spring and control, plus unsurpassed water-carrying performance. All brushes have plated brass, seamless ferrules.
Note - Brush sizes are not standardized. The length and width of a brush of a given shape and size varies considerably by manufacturer. Since fine art brushes are handmade, expect some variation even among brushes from a given manufacturer.
From size 12 up, the series 10, 11 and 35 are packaged piece by piece in a special gift box, which includes also some pure soap for the care of these precious brushes