Nordic Ware Microwave Micro-Go-Round 10 Inch 10-Inch spring loaded turntable requires being wound it up in order to spin. Placing a weighted item on turntable releases it to unwind which will make it revolve in the microwave. When the item is removed, the table will stop turning. You must re-wind each use. If the product still isnt working, we have a 5 year warranty through the Nordic Ware website. Weight activated mechanism rotates food to ensure even cooking Designed for full- and midsized microwave ovens Hand wash with mild detergent. Material: BPA-free and Melamine Free Plastic Made in the USA