The T-Fall Ingenious Whisk features steel wires coated in silicone to provide optimum aeration. Protects mixing bowl from scratches and safe on non-stick surfaces. The T-Fall Ingenious Whisk is easy to clean and is dishwasher safe. Made of ABS and Silicone. Lifetime Warranty: This product is warrantied against defects in materials and workmanship for life from the date of purchase. If this product fails to conform, a replacement will be provided at no charge. Please call toll free at 1-800-421-6290.