Cleaning KONG Classic-shaped toys is made quick and easy, because even the most skilled dog can miss a few spots. Insert brush, twist and scrub and the specially shaped, flexible bristles efficiently remove leftover treats. Cleans KONG Classic toys in all sizes. Rinse, shake and dry the brush and choose your next delicious stuffing recipe. Antimicrobial, mould-resistant and BPA-free. Not dishwasher safe.