Sand timers are designed to encourage kids to brush their teeth for an adequate amount of time. The pack contains 12 hourglass timers, each measuring 3 1/2 inches in height. These sand timers are an effective tool to ensure that kids brush their teeth for a thorough cleaning by timing their brushing routine.

The timers have a duration of 2 to 3 minutes, which is the recommended time for proper teeth brushing. This helps in making the brushing process more engaging for kids, as they can watch the sand run through the hourglass and know exactly how long they need to brush.

These sand timers are likely intended for use at home or in educational settings, as part of dental hygiene lessons or routines. They serve as a visual aid to encourage kids to develop good oral hygiene habits and make toothbrushing a fun and interactive experience.