Features: 1-minute to 60 minutes any adjustment. Beautiful shape, very cute home decoration. Wide range of application: medicine, kitchen, home, school, nursing and more. Mechanical timer, the use of special mechanical, the principle of the same as mechanical-watch. Turn the timer clockwise once to 0, and then turn back counterclockwise to the required time, the timer will emit clear sound. Specifications: Material: Plastic Package Includes: 1x Timer note: When rotating to the end, do not exert too much force, so as not to damage the built-in movement; Do not rotate back and forth for many time during the timer operation, so as not to damage the built-in movement; Do not throw, throw, and other easy to break the cover of the timer; Timer cover, built-in movement are plastic, do not use fire to bake, burn, etc