Based on this description, it seems like you're looking at or looking for metal gear wheels, which are mechanical components commonly used in various machinery and equipment, such as industrial machinery, automobiles, robotics, and more. These gear wheels are typically made of metal for durability and strength, and they are used to transmit power and motion between rotating shafts. The term "isolated" likely refers to the way the gear wheels are presented in the image or described, possibly without any other objects or distractions in the background.