Twostep operation for reliable timing: Step 1: Before each use, wind the timer knob clockwise a full revolution from 0 back to 0 until the timer pointer aligns with the zero mark. Step 2: Wind the timer knob counterclockwise to the number of minutes you want it to ring. If these steps are not completed, the timer will not ring. Easy twist controls and battery design: 60minute kitchen timer with no batteries needed, making it energy efficient and ecofriendly. Simple twist controls are easy for everyone to use, including seniors and kids. material and compact design: Made of plastic material, featuring durable; sturdy and not easy to damage. Waterproof and oil proof; small size to avoid taking up much counter space. Loud alarm for clear notification: The manual timer emits a loud alarm lasting 3 seconds when time is up, audible from another room to help prevent overcooking. Use scenarios: Timed stove tasks such as boiling eggs or timing pasta. Oven baking for cookies, cakes, or pastries to achieve reliable results. Simmering sauces or roasts that require periodic checks without constant supervision.