This mechanical timer adopts completely mechanical design, which makes it work without battery, it is environmentally friendly and could work longer. The 60 minute visual timer helps to improve time management and productive learning by staying on track of activities, ideal for time out and workout, cooking, meetings, teaching, playing games, doing homework, and more!This magnetic kitchen timer is easy to operate, you just expand the red disk, making it easy to see the time count down visually. It will improve time management, perform tasks effectively, complete your work, and encourage productive learning with the 60 minute visual timer. The magnets on the back for adsorption on iron-containing objects such as refrigerators and microwave ovens.This boiled egg timer is an excellent tool to help children understand the passage of time visually. It will encourage organization and productivity for all ages, including those with autism, ADHD or other learning disabilities. It can be used as a learning timer, gym timer, homework timer, kitchen timer, study timer or work time. This kids visual timer is made from premium stainless steel material, corrosion resistant and waterproof. Great for classroom, home, and office settings. This option is ideal for activities such as doing projects, reading, studying or taking tests. It is perfect gift for friends and family on birthday and Christmas.