KOKUBO PT Valve Washing Brush 4.1" (10.5cm) Cleaning Tool The details can be washed with a sharp brush! Simply attach it to a plastic bottle filled with water to easily wash it with water anywhere. Convenient because you can open and close the plug and adjust the water volume just by turning the valve! Number : 3520 Dimensions : 4.1" (10.5cm) Material : Polypropylene / Polypropylene Made in China How to use Remove the cap of the plastic bottle, add water, and then attach this product. * When installing, turn the valve clockwise to close it so that water does not come out. Turn the valve counterclockwise to open it, and tilt the plastic bottle to drain water from the brush. Use In the sash groove Around the faucet of bathroom and wash basin For removing mud from bikes and bicycles “A type with PET bottle brush opening and closing valve" “Opening and closing valve type” that prevents water from spilling from PET bottles. Open and close the faucet by turning the valve. The brush has a sharp tip and can clean fine parts. For removing mud from bicycle and motorcycle tires and sash grooves.