Operation Methods: First, turn dial clockwise to the scale of 60.Then turn it back to the number of minutes you want counterclockwise.When the time is up, it will ring automatically. Specification: Condition: Material: ABS Color: As shows in pictures Timer range: 60 minutes Working angle: 360° Size: Approx.6*6*5cm / 2.36*2.36*1.97in Gross Weight: Approx.70g Package List: 1* Ladybug 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. Features This timer is great for use in salons, offices, labs, schools or in the kitchen. Mechanically operated timer does not require batteries. Enjoys a loud ring, which can easily be heard from across room. Made from premium ABS material, anti-rust and durable. Timer can be set up to 60 minutes.