KONG Brush makes cleaning KONG Classic shaped toys quick and easy, because even the most skilled dog can miss a few spots. Insert brush into KONG, twist amd scrub and the specially shaped, flexible bristles efficiently remove leftover treats. Cleans KONG Classic sized S-XXL. Rinse, shake and dry the brush and choose your next delicious KONG stuffing recipe. Antimicrobial, mold resistant and BPA-free. Not dishwasher safe.