The video shows a close-up of a person's hand holding a brush and applying a liquid, possibly an egg wash, to the surface of several croissants that are arranged on a baking tray. The croissants are pale in color and have a crescent shape. The brush is red and black, and the liquid appears to be a glossy, viscous substance. The person's hand moves methodically from one croissant to the next, ensuring that the liquid is evenly distributed.