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
Balance Portable, Navigator* series, Model: NV422, Maximum Capacity: 420G, Readability: 0.01G, Includes touchless sensor, mechanical overload protection and fast stabilization time, accurate weighing results while improving efficiency and productivity