Four Kolinsky Sable 1001 Brushes: Nickel Ferrule, Short Black Handle "Albata"

One Siberian Squirrel 2404 Brush: Film Ferrule, Short Varnished Handle "Albata"

Type of brush	Length of hair	Diameter/Width of hair
bright #  6	20.0 mm (25/32")	18.0 mm (3/4")
mop #  6	38.0 mm (1·1/2")	11.7 mm (1/2")
round #  10	25.0 mm (31/32")	6.2 mm (1/4")
round #  4	15.0 mm (19/32")	3.0 mm (1/8")
round #  2	10.0 mm (3/8")	1.9 mm (1/16")