New. Not used. Gift not needed. Ad pictures from Elenco. From pet&smoke free home Details below from Elenco: With this building toy, young engineers can assemble over 100 different electronic circuit projects with just 30+ electronic parts Kids can construct working models of a photo sensor, a flashing light, an Adjustable-Volume siren and much more This STEM kit comes with a clear, easy to understand illustrated instruction manual No tools needed! All parts Just click together and support a vigorous STEM/ steam educational curriculum Learn by doing. Designed for young engineers 8+ Requires 2 "AA" batteries (sold separately) Many awards, including Toy of the Year (TOTY), ASTRA'S Best Toys for Kids, Parent's Choice Recommended, Good Housekeeping's Best Toy, Family Choice, National Parenting Publications Awards (NAPPA Gold), Children's Choice, Dr. Toy (100 Best Children's Products, 10 best Educational Products, Green Toy Company), The inaugural Seriously STEM award & KAPi Award.