1. Productivity perfect f individual use small groups use this 99 minute countdown clock to stay on task, assists with ganization concentration. 2. The has 6 preset timing intervals, 3 or 5 or 15 or 30 or 45 or 60 minutes. Simply turn the position to start countdown.Unique cube-design, novel interesting, make you fall in love with time management. 3. Dual Timing Modes. The hexagon offers countdown count-up modes. Apart from the 6 preset countdown custom countdown, you can start count-up mode by placing the bottom up, stop it by sting the screen up. The range is 00:01 to 99:59. Easy setup f maximum comft. 4. Suitable f Scenarios. The digital is a perfect tool f office, wk, meetings, kids, study, reading, wkout, cooking, me. Needless to say, this can be used in thouss of scenarios! 5. 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:Black Material:Plastic Package Contents: 1 Only the above package content, other products are not included. Note: Light reflection different displays may cause the col of the item in the picture a little different from the real thing. The measurement allowed err is 1-3cm.