HOW TO USETurn the timer clockwise to 55 minutes, then turn it counterclockwise to the desired time, eg 20 minutes. Then the timer will ring after 20 minutes. MECHANICAL OPERATION: No power, manual winding, clear sound. High decibel buzzer warning, accurate cooking time. The bell will ring automatically when the cooking timer magnet rotates to set the time for mechanical drive. STAINLESS STEEL MATERIALThis mechanical kitchen timer is made of stainless steel material, which is durable , safe and anti-rust, which makes it shockproof, precise and attractive. TIME SETTING RANGEYou can set the time as you like with in 0-60 minutes, the design special and cute egg shape will make your room or kitchen more special and charming, and you can also send it to your family and friend as a nice gift. SCOPE OF APPLICATION cooking, baking, reading , homework, overtime, sports, games, activities, yoga, beauty treatments and more.