Weiler® Acid/Flux Brush, 1/2 in Brush, 3/4 in Trim Length, Horsehair Trim, Black Trim Color, 5 in L Handle, Cylindrical Handle, Tin Ferrule Handle, 5-3/4 in OAL. Weiler® 44090 Acid/Flux Brush, 1/2 in, Tin Ferrule, Black