Sprockets are a type of mechanical device used to transmit rotational force. They are composed of a series of gears, TEETH, and COGS that interlock with each other. Gears are circular wheels with TEETH around the edge that mesh with other gears to transfer motion. TEETH are the individual points on a gear that fit into the grooves of another gear. COGS are similar to gears, but they have fewer TEETH and are usually smaller in size. Together, these components form a sprocket, which is used to transfer power from one rotating shaft to another.