Special Features:

1/2 inch diameter, open end, hog bristle, twisted wire handle, pipe cleaning brush; bristle is natural color, stiff, resilient hog bristles of uniform length, and is cleaned and sterilized; wire is brass, zinc-coated steel or corrosion-resistant steel; brush head shall be located equal distant from the ends; the handle end of the twisted wire has a loop and the other end of the wire is tightly twisted to a rounded, smooth end

Properties: