Simple Concept: As time passes, the rainbow disk of the visual timer disappears counterclockwise; it is interesting and easy to understand; this timer helps kids and adults develop a sense of time and improve time management Easy to Use: Turn the center knob clockwise to set the desired time duration; the timer starts counting down automatically; the protective cover is made of soft silicone material that effectively protects the device No Ticking and Mute Function: Operates silently without ticking, ideal for sound-sensitive environments; offers three alert volume options: mute, weak, and loud; alarm lasts 3 seconds or 30 seconds; press the top button to stop the alert Suitable for Many Occasions: This 60-minute analog timer can be used in various settings; suitable as a kitchen timer, study timer for children, classroom task timer for teachers, or meeting timer Low Battery Reminder: Indicator light flashes when battery power is low; requires 2 AAA batteries (not included) Specifications: Material: ABS, PC, silicone; Power supply: 2 AAA batteries (not included); Product dimensions: 9.3 x 9.3 x 5.3 cm; Certifications: CE, FCC, RoHS