The series 333 are made using high-quality Toray synthetic hair instead of sable. This gives the brush more spring than its traditional sable hair equivalent. These brushes are hard-wearing, responsive, and represent excellent value for money. This series is available in the following sizes: 00 = 21mm hair length 0 = 21mm hair length 001 = 22mm hair length 002 = 23mm hair length 003 = 26mm hair length 004 = 29mm hair length 005 = 32mm hair length 006 = 36mm hair length 007 = 37mm hair length 008 = 40mm hair length 009 = 42mm hair length 010 = 43mm hair length 012 = 44mm hair length