The video shows a green toy caterpillar with a yellow antenna on its head. The caterpillar has a red button on its back and four legs, each with a letter on it. The letters on the legs are in the order of the alphabet, starting with A and ending with F. The person in the video presses the red button, and the caterpillar's legs move in a waving motion. The person then presses the buttons on the caterpillar's legs, causing them to move in a different pattern. The caterpillar's body is shiny and smooth, and it appears to be made of plastic.