Welding electrodes are consumable metal products that are used in the process of welding. They provide a pool of molten metal to be used for welding.
Welding electrodes are used to create heat and energy to weld two or more pieces of metal together.
The metal pieces come in various shapes and sizes depending on what they will be used for. The diameter of the rod is determined by the thickness of the metal to be welded and the length is determined by how long you want your weld to be.