Wooster Brush 1833 Top Brass Wire Brush Packed with non rusting brass wire which resists corrosion and solvents Pliable bristles help avoid scratching on softer surfaces like aluminum, wood, mortar, or ceramic tile grout Use with oils or solvents to clean paint sprayers, machinery, other equipment Handy size reaches small spots Block size 3 1/4 x 1 inch, overall 8 1/4 inch length