Operation Methods: First, turn dial clockwise as far as it will go.Then turn it back to the number of minutes you want counterclockwise.When the time is up, it will ring automatically. Specification: Condition: 100% Brand new Material: Stainless Steel Color: Silver Timer range: 60 minutes Operating direction: Clockwise Force running motion: ≤0.45N.m Working angle: 360° Ringing time: 5 seconds Size: Approx.7.5*7.5cm / 2.95*2.95in Gross Weight: Approx.90g Package List: 1* Kitchen Timer Notice: Do not force too much when turning dial, so as not to damage the built-in movement. Do not repeat the rotation back and forth many times so that the built-in movement is not damaged. Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures. The mechanical timer does not require a battery, and the timer can be set up to 60 minutes. This timer is very suitable for use in salons, offices, laboratories, schools or kitchens. Kitchen Timer enjoys the loud ringtones that are easy to hear throughout the room. Easy to set up: To use Kitchen Timer, just turn the dial to the desired time. Made of high-quality stainless steel, it is rust-proof and durable, and it is also convenient for you to store it for a long time when you don't need it.