The video shows a man using a brush to apply a white substance to a wooden board. He is seen brushing the substance in a back and forth motion, covering the entire surface of the board. The man appears to be in a workshop, and the wooden board is placed on a workbench. The substance being applied is likely a type of finish or sealant, which is commonly used to protect and enhance the appearance of wood. The man's technique is methodical, ensuring that the substance is evenly distributed across the board's surface. The video provides a close-up view of the process, allowing viewers to see the texture of the wood and the smooth, glossy finish of the applied substance.