[package contents] timer*1, without batteries. [item size] 80*75*16.5mm [timer and countdown timer ] Digital timer with 2 groups of count up or count down for longer time range up to 99 hours, 59 minutes and 59 seconds. Includes auto memory, the default timer is set to last, and when you pause and restart the timer, it will run from the pause time. [Vibration/Beep Mode] when the vibrations are in your pocket, you can feel the vibrations without disturbing others in public places. Nap mode lets you get enough sleep without being late. Energy saving, you can turn off the screen display at night and turn it back on if you press any button. [Multi-position] clock alarm timer has a strong magnetic backing retractable and hook that can be placed in different places such as refrigerator, oven, table, blackboard or wall hook. With its small size, it fits easily in your bag or pocket wherever you go.