"3/4 INCH DIAMETER; TWISTED WIRE HANDLE, CONICAL TIP, HOG BRISTLE BRUSH INTENDED FOR USE IN CLEANING LABORATORY PIPETTES; BRISTLES ARE NATURAL COLOR, STIFF, RESILIENT HOG BRISTLES OF UNIFORM LENGTH, CLEANED AND STERILIZED; BRUSH HEAD TAPERS FROM THE HANDLE AND TOWARD THE DISTAL END AND HAS A SINGLE FAN SHAPED WING OF FILLER NEATLY AND SECURELY BOUND INTO THE TWISTED WIRE"