Usage Tips:1. Productivity timer perfect for individual use or small groups use this 99 minute countdown clock timer to stay on task, assists with organization and concentration.2. The timer has 6 preset timing intervals, 3/5/15/30/45/60 minutes. Simply turn the timer position to start countdown.Unique cube-design, novel and interesting, make you fall in love with time management.3. Dual Timing Modes. The hexagon timer offers countdown and count-up modes. Apart from the 6 preset countdown and custom countdown, you can start count-up mode by placing the timer bottom up, and stop it by standing the screen up. The timer range is 00:01 to 99:59. Easy timer setup for maximum comfort.4. Suitable for Scenarios. The digital timer is a perfect tool for office, work, meetings, kids, study, reading, workout, cooking, and more. Needless to say, this timer can be used in thousands of scenarios5. 3.5inch, Topwide:2.6inch, Bottom wide:2.36inch; 0.37lb, Need 2 x AAA battery, Flashing backlit visual alert.Easy to use.Power Suplly:2 x AAA batteries(Not included batteries)Colour:BlackMaterial:PlasticPackage Contents:1 * TimerOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.