Interesting Hand Power (Model 300 Electronic Building Block).

Description Electronic Blocks - Hand Power Generator (No.300) There are 31 projects build suggestion and more funny DIY combination in your children imagine. Each option is listed in the color illustrated instruction manual, and pieces are color coded for easy identification. Kids can create successful projects and learn the ins and outs of circuit building with endless fun. The more DIY projects they complete, the more they'll want to try. Make child fall in love with physics and electronic. Children can enjoy the DIY process, deepen understanding of physical phenomena and lay the foundation of developing good scientific thinking; It’s also a very good parent-child game to increase parent-child relationships. Specification:      1.  Material: ABS Plastic + Brass button + Electric components      2.  Color: Multicolor      3.  Battery: 3 x AA batteries (not included)      4.  Function: Maze Challenge Flying Saucer circuit combination       5.  Quantity: 34 PCS      6.  Projects: 3