No Batteries Required - Fully Mechanical Countdown Timer for School, Classroom, Office, Work, Kitchen, Cooking, Gym, Fitness and more! High-precision mechanical timing No battery required Durable The ideal time management tool - improve time management, increase productivity on daily tasks and more! Examples Testing Managing game time Bedtime Setting timeouts and making sure you brush your teeth long enough With Special Needs - Countdown Clock helps people with special needs Bright colored discs that fade over time The visual design of this timer helps ease transitions, encourages independence and increases productivity for people of all abilities Smaller size with multiple placement options - 1) Has a strong magnetic back plate, ideal for placement in refrigerators, ovens, utility cabinets, classroom whiteboards, and more! 2) The two foldable legs on the backrest can be opened and placed on flat surfaces such as desks and countertops 3) Hanging holes for easy wall hanging EASY TO USE - To activate the timer before each use, turn the control knob clockwise to the 55 minute position, then counterclockwise to the desired time Dimensions are 6.3 x 6.3 x 2.0 inches Large enough to see how much time from a distance . There is a soft tick to let people know the timer is working. color: White Packing list: 1pcs