The hourglass is set at different times: 1 minute, 3 minutes, 5 minutes, 10 minutes, 15 minutes and 30 minutes. You can also choose customized time. You can choose an hourglass based on your specific needs and actual situation, to help you complete certain plans or programs. It is very convenient to help you complete the task in the effective time. This hour glass timer is cute and small, sleek and transparent. Moreover, the specific time is engraved on the body of the timer bottle, which is clear and easy to distinguish and choose the desired sand watch. The sand glass is made of a high quality plastic material that is safe and does not cause harm to human health. So this plastic sandglass is also very suitable for children to use, can be a very good toy for them.