Interface Shield provides a convenient way to make connections from microcontrollers to sensors. Shield plugs directly on top of and adds two BTA (analog) and two BTD (digital) sockets, be used with SparkFun RedBoard, also works with Intel Galileo
Electrostatic Friction Rod Kit, includes: -3 fabric cloths (wool, cotton, silk) -3 rods (glass, ebonite, lucite), provides the necessary tools to free both positive and negative charges for exploration into electrostatic forces, 0.4 lbs, 9.8x6.0x1.8in
Neodymium disk magnet, Grade 35, Diameter: 1 inch, Thickness: 0.75 inches, Weight: 0.157 Lbs, are made from the most powerful magnetic material in the world, are composed of neodymium, iron, boron and a few transition metals,