In the video, a person is seen cracking their knuckles. The camera is focused on the person's hands, and we can see them using their fingers to crack each knuckle one by one. The person's hands are visible, and we can see the sound of the knuckles popping as they are cracked. The video is shot in a close-up view, and the background is not visible. The person's hands appear to be adult-sized, and the skin tone is light. The video is shot in a dimly lit room, and there is no other visible activity or objects in the frame.