Double wall calorimeter with easily removable spring heating element, Operates on 3-6V DC at approximately 5 watts, Inner aluminum 150mL reservoir, aluminum outer, plastic insulator ring, Lid accepts heating element, stirrer, and thermometer cork, 5.1x4.7x7.1 in, 0.7lbs
Knife Switch, Single Pole - Single Throw, Durable Plastic Base Knife Switches That Stand Up During Tough Student Use. Poles & Knives Are Made Of Brass For Good Electrical Connections.
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
Blade number:23, Disposable Premiere* Blades are made of high carbon steel, individually foil wrapped and sterilized by gamma radiation. 10 per pack; 10 packs per box, For number-4 scalpel.