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 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 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 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