da Vinci Series 500 Gilder Tip Russian Blue Squirrel Hair Single Thickness Paintbrush, Size 40mm (500-40) Series 500 gilders tip is pure russian blue squirrel hair of a single thickness in a green holder Highest quality, traditionally hand made gilders tip Also available in double thickness, series 502 by da vinci For the gilding and restoration of frames and other objects Certified green manufacturing with sustainable wood handles; made in germany