Gold Leaf Dusting Mop Brush (30mm to 48mm) are used to gently dust away the excess gold leaf know as skewings. Remember to dust gently! The excess gold that you dust off can scratch the gold on the surface. Brush Sizes (Length out): 10 (30mm), 14 (35mm), 18 (39mm), 20 (42mm), 24 (48mm