COOKING TIMER - Weight: 114 Grams, Material: Stainless Steel, Plastic. Just Rotate To The Desired Mark, It Will Count Down, Simple Operation. NO POWER REQUIRED - This is a precision kitchen timer, does not require batteries, energy saving and environmental protection. HOW TO USE - Rotate the kitchen timer to 55 minutes, and then rotate counterclockwise to the required time, such as 10 minutes. Then the timer will ring in 10 minutes. (For detailed usage, please see the video guide) MULTIPLE USES - With a clear time scale mark, you can clearly see the set time. The mechanical kitchen timers can be used for cooking, meeting, teaching, playing games, doing homework, etc. Small and light, easy to carry. CAUTION When rotating the timer clockwise from 0 to 55, do not use excessive force, and do not repeat the rotation, so as not to damage the built-in movement.If you have any quality problems or usage problems, please leave a message to us, and we will deal with it in time for you until you are satisfied.