Tube brush with wire loop-end handle for general purpose use. Single stem/single spiral bristles. Ideal for cleaning bottles, carburetors, brake cylinders, radiator hose, engine blocks, blocked hoses, drains, etc. 0.005 In. nylon bristles.Length: 1/2 In. Dia.Bristle Material: Nylon WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. -