This timer is made of plastic and can provide you with a clean cooking environment. It can also manage your time effectively while cooking. No Batteries Required: Works without a battery and is always ready to use, reliable, functional, robust, environmentally friendly and user-friendly. . Direction of operation: Turn the watch clockwise to the number 55, then turn it counterclockwise to the required time. A bell rings when all minutes have passed. Funny kitchen helper: Tomato timer is your little kitchen helper and offers you a happy, good and satisfied attitude towards life. Versatile uses: Countless uses for cooking, baking, sports, training, homework, brushing teeth, household, yoga, fitness, showering, studying, teaching, playing, cooking eggs or at work.