The video shows a close-up of a wooden corner joint. The joint is made of two pieces of wood that are joined together at a right angle. The wood is light brown in color and has a smooth finish. The joint is made with a dovetail design, which is a common technique in woodworking for joining pieces together. The dovetail joint is visible as a series of interlocking shapes that fit together snugly. The video does not show any movement or action, but rather focuses on the intricate details of the joint.