Back Simple dials Control: Strong base attaches to fridges, whiteboards, or metal desks Simple rotary dials sets time instantly none complex menuses Perfect for kids, seniors, and teachers during activities Suitable for a variety of usages as cooking, housework, workout, game, meeting and other activities Enhanced time organization boosting your time management and daily task efficiency the timer fast and accurate readouts, making it a valuable tool for individuals of all ages intuitives operations turn the knob to adjust time; the colored dials fades as time passes it rings when time is up.to activate it before each use, turn the control knob clockwise to the 55-minutes position, then set your desired time counterclockwise Digital Visual Timer with Large Display Features a high contrast screen with clear digits visible from any angles Perfect for classroom teaching, kitchen cooking, and senior use Unique visual countdown progression helps users track time intuitively