Specification: Item Type: Mechanical Kitchen TimerMaterial: Stainless steel + plastic Operation Method: 1. Rotate clockwise to 60 minutes, this is the "timer" winding. 2. Turn counterclockwise (rotate) to the time scale you want to time. 3. When the clock reaches 0 scale, the timer will ring automatically.Weight: Approx. 170 g / 6 ozSize: Approx. 3.6cm / 1.4in 7.3cm / 2.9in Package List:1 x Timer Note:1. Please allow 0‑2 cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Features This mechanical chronograph is a needle type pointer with accurate time scale, which is more conducive to observing time changes, simple and intuitive. The magnet on the back of the mechanical timer is easy to use on metal surfaces such as refrigerators and ovens. Just turn the selector to the desired time setting, and when it reaches 0 o'clock, the alarm will sound. Durable stainless steel packaging provides corrosion resistance, mechanical timer does not require any batteries, energy saving and environmental protection. This timer is the perfect cooking/baking supply, you can control the time during the cooking process.