Snap Circuits by Elenco Electronics - Snap Circuits® Jr. Select 130in1Age Group: 8+ Build over 130 different electronics circuit projects with 30+ electronic parts! Construct working models of a photo sensor, a flashing light, an Adjustable Volume siren using parts such as glow in the dark flying propeller, phototransistor, LEDs, resistors, a DC motor and much more! No soldering no tools it's a snap! Snap Circuits parts require no tools and click together to ensure solid electrical connections Design working electrical