The image displays a simple, black and white line drawing of four spheres connected by straight lines, resembling a minimalist representation of a ball and socket joint. The spheres are arranged in a vertical line, with the topmost sphere being the largest and the bottommost sphere being the smallest. The lines connecting the spheres are straight and unadorned, and the background is plain white, which contrasts with the black lines and spheres. The style of the image is clean and modern, with a focus on geometric shapes and lines. There are no texts or additional elements in the image.