There are four individuals in the image. They are seated at workstations with various tools and materials. The person on the left is wearing a white shirt and blue jeans, holding a tool. The person next to him is also dressed in a white shirt and blue jeans, holding a tool. The third individual is wearing a green shirt and blue jeans, holding a tool. The fourth person is wearing a black shirt and blue jeans, holding a tool. All of them appear to be engaged in some form of manual labor, possibly assembling or working with electronic components.