This is a High quality 16 QT (4 Gallon, 15 liter) stainless steel bucket. This is bigger than the normal usually offered. The brush holder which is an additional option is made from solid stainless steel, with 6 stainless steel knurled screws which allow the user to fit which ever brush they perfer in the holder and simply tighten the screws at the sides. (Brush NOT included holder only)