Operation Methods: First, Rotate the timer clockwise to the end.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.10*6cm / 3.94*2.36in Gross Weight: Approx.130g Package List: 1* Kitchen Timer Notice: 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. Mechanically operated timer does not require batteries. The kitchen timer can be set up to 60 minutes. It enjoys a loud ring, which can easily be heard from across rooms. Made from premium stainless steel, the kitchen countdown timer is anti-rust and durable. This timer is great for use in salons, offices, labs, schools or in the kitchen. Time reminder is easy to set. Simply turn the dial to desired time.