This kit configures 10 LEDs into a circle. When the button is pressed, each LED light up in turn. The flow speed be faster at the beginning, then the flow speed become slower and slower, and finally stop on a certain LED. Move again, and if the last LED that lights up is the same as the player predicted, it means "winning". You can define 10 kinds of things or 10 things according to the numbers 1-10. When the LED stops, the corresponding number represents the thing drawn or the thing to be done. It can also be used as a number estimation game, electronic dice, and lottery machine. Kit name:-060 Electronic Lucky Wheel Power input:+3V-5V Power supply method:2 x AA batteries (, please bring your own) Weight:78g Note:Shipped in pieces, the color and shape of the accessories are random, no specification is accepted, and it not affect the use. Colour:As Shown Material:abs Size:PCB size:60x60mm Package Contents: 1 set * Lucky Wheel DIY kit 1 * case Only 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.