Durable Material: This kitchen timer is made of premium metal and ABS for long-lasting durability. The manual timer features a sturdy magnet on the back that securely attaches to most household metal surfaces. The clear, easy-to-read dial includes individual minute markers Magnetic Suction Design: The magnetic suction design will help you easily attach the stainless steel timer to metal surfaces, such as refrigerators, range hoods, ovens, microwaves, etc. worry about it falling off. The magnetic visual timer is the perfect choice for added convenience Mechanical Power Supply: The cooking timer is powered by manual winding, so you don't need batteries! The kitchen timer has a long battery life, so you don't have to worry about replacing them often. Say goodbye to high-frequency battery replacements and don't waste time and money buying extra batteries! The mechanical kitchen timer is convenient and fun! Easy to Use: This kitchen timer manual is designed to be easy to use. Simply turn the dial all the way clockwise to 55 (not past the 0 mark), then back to the desired time. When the time is up, the colored dial disappears and an alarm sounds. No additional buttons are required to set the time Wide Application: The visual timer is the perfect time management tool for classrooms, homes, kitchens, and offices. The magnetic timer's compact size and visible colored dials along with loud alarms make it the perfect choice for anyone looking for a great classroom timer, mechanical magnetic timer, learning timer, toddler timer, time tracker, or more!