Description:  【Interactive LED Experience】: This DIY kit features a circular arrangement of 10 Led that light up sequentially when activated. Initially, the Led rotate rapidly and gradually slow down until LED lit, indicating the "winning" selection. for games like number guessing, electronic dice, or as a fun lottery machine 【Easy to Operate】: Lucky Turntable Soldering Practice Kit  is designed with user friendly controls using NE555 and CD4017 chips for random LED output. Simply press a button or the device to start the LED rotation, making it an engaging activity for beginners and hobbyists  【Compact and Lightweight Design】:Electronic Lucky Turntable DIY Kit  lightweight and easy to handle and for on the go 【Material】: Made of ABS material, Electronic DIY Lucky Rotary Suite Components is sturdy for long term use  【 DIY Kit】: Assemble your   electronic fortune wheel while learning about basic electronics in an enjoyable way Specification: Power input: +3V~5V Power supply: 2 AA batteries (not including) PCB size: 60x60mm Size Chart: Side Length: 7cm/2.76inch Height:2.16cm/0.85inch Package Includes: 1 Lucky Turntable Soldering Practice Kit  Note: Please allow slightly errors due to manual measurement.