The 90-minute TWIST® is an easy-to-use time management tool great for kids and adults. To use, simply turn the outer ring until you get to your desired time, then push the play button. A digital display shows at a glance how much time remains. It easily attaches to most metallic surfaces. Ideal for morning and bedtime routines on task to timing homework, instrument practice and screen use. In the classroom, it’s great for everything from timing tests and turn-taking exercises to timing group activities and time management.