Visual Color Countdown - Rainbow dial gradually changes as time passes - Helps children and adults easily understand remaining time without reading numbers Silent Operation Design - No ticking sound during countdown - Creates a calm environment for studying, reading, working, or focusing Simple Twist Control - Rotate the knob clockwise to set time - Easy for children, students, teachers, and adults to operate Selective Alarm Reminder - Alarm rings only when countdown ends - Rear switch allows quick silencing for quiet environments Bright Rainbow Appearance - Colorful design captures children's attention - Encourages positive time management habits for study and routines Item Name: Visual Timer Material: Plastic Power Supply: 1 x AA Battery (Not Included) Dimensions: 10 cm x 5 cm x 9.5 cm 3.94 x 1.97 x 3.74 inches Design: Rainbow Visual Dial Operation: Manual Twist Countdown Package Includes: 1 x Timer Note: Color may vary slightly due to lighting and screen differences. Please allow slight measurement differences due to manual measurement.