Features: 100% brand new and high quality ABS material, mechanical movement, bell reminder, no battery required. Cute and interesting duckling design, non-slip and wear-resistant, does not hurt the desktop. Suitable for cooking, baking, learning timing, cultivating the concept of time, planning time rationally, and improving learning efficiency. For mechanical timers, the chain must be wound before use. Please read the instructions before use to avoid damage. Setting instructions: Take the timing of five minutes as an example. At the beginning, the arrow points to 0, and in the first step, turn it clockwise to 55 minutes. Turn it counterclockwise for another five minutes, and when the timer reaches 0, the timer will automatically ring. Package Includes: 1 x Timer Specifications: Material:ABS Plastic Color:White and Yellow Size: Approx. 6.8x6.5 cm/2.67x2.55 inches note: 1.Please allow 0-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3.Other parts are not included. 4.Regardless of whether the timer is 5 minutes or 10 minutes, it must be screwed to 55 minutes first. This step is to wind the timer. Thanks for your understanding.