The Discovery Mindblown Action Circuitry Electronic Mini Experiment Sets let you build your own experiments that are powered with real electricity. Learn how to engineer different things electricity can do. Click "Add to Cart" NOW. • Product dimension - 7.75'' L x 13'' W x 8'' H • Product weight - 1.1 lbs • Build working gizmos and gadgets with the action circuitry electronic experiment mini set from discovery • Floating ball activity- with this fun mini stem kit you can make your own floating ball • Educational stem toy ? learn about electricity and circuitry- learn the principles behind electricity circuitry and engineering as you run the included experiments and even design your own • Powered by batteries- the mini experiment requires 2 AA batteries (not included) to power the module • For ages 8+ building set is designed for children ages 8 and older • Warning - choking hazard contains small parts not suitable for children under 3 years