3 years & up. This Time Timer® MOD helps children visualize and manage the passage of time, so they can be more productive and organized. Use this timer to increase productivity by breaking tasks into manageable parts, keeping meetings on schedule, and to reduce conflict with turn-taking between children. Timer is sleek, portable, and has a removable, silicone cover that offers an extra layer of protection. Features an intuitive set knob at the center of its face, a clear plastic lens to protect the red disk, and an on/off switch for the audible alert. Measures 3.5" x 3.5". Requires 1 AA battery (not included).