Simple Concept: As time passes, the rainbow disk of visual timer disappears counterclockwise; It is interesting and super easy to understand; This timer will help kids and adults develop a good sense of time and improve time management Easy to Use: By turning the center knob clockwise, the rainbow disk can be adjusted to the desired time duration, then the kids timer starts to count down; The protective cover is made of soft silicone material, it can effectively protect the timer No Ticking and Mute Function: No ticking when the kids timer is working, ideal for sound-sensitive environments; 3 alert volumes optional: mute, weak, loud; lasting alarm: 3 seconds/30 seconds. Press the top button to stop the alert Suitable for Many Occasions: This 60 minute analog timer can be used in many occasions; It can be used as a kitchen timer, a study timer for kids, a task timer for teachers in the classroom, or a meeting timer Low Battery Remind: The indicator light will flash if the battery power of the timer is low; 2*AAA batteries required but not included Specifications: Material: ABS, PC, silicone Power supply: 2*AAA batteries (not included) Product size: 9.3*9.3*5.3 cm Certification: CE FCC RoHS