Description: 【Material】Ai algorithm probability double lottery picker is made of quality pp material, which is durable and can be used for a long time. 【Features】If there is no use for 3 minutes, the lottery machine will automatically enter the shutdown mode. 【Easy to Use】Short press key 1 to save the record. Long press to enter record search mode.Short press the number 2 button to scroll, long press to switch between mode.10 groups of numbers can be saved in each mode, and when the 11th group of numbers is saved, the first group of numbers will be automatically overwritten. 【Portable】Number picking machine is lightweight and small, very convenient for you to carry. 【Application】Lottery number selector is perfect for cafe, KTV, restaurant, club, sweepstakes, recreational activity, and more. Specification: Color: Red Material: PP Size Chart: 5.5cmx3.5cmx1cm/2.17inchx1.38inchx0.39inch Package Includes: 1 Piece Lottery Number Selector 1 Piece Lanyard 1 Piece Manual(6 Pack) Note: Please allow slightly errors due to manual measurement and different monitors.