Noted: Must go up to 55 (no more than 55), DO NOT set to 0, rotating counterclockwise from 0 will damage the mechanism. The mechanical timer has no battery, whenever you need to wind it up first, just wind it fully once to 55 (no more than 55) BE SURE TO READ AND FOLLOW THE SETTING INSTRUCTIONS: turn clockwise to 55 minutes, then counter-clockwise to set the desired time. The timer must be wound manually. Mechanical movement inside, each machine is handmade. Cute Fox Shape: Great for kitchen lovers, not only a dial timer, but also a home decor , you will love this cute and functional friend. It has a certain timing deviation of +/-5%. ABS-Smooth Touch: The whole interface with careful polishing without sharp point, a cute thing to put in the bedroom, the office, kitchen. Manage your time: Help you learn time management, especially for cooking, baking, brushing teeth, reading, learning, running , yoga, mask beauty, coffee tea time, etc.