The video shows a person holding two wooden blocks in their hands. The blocks are connected by a small metal rod that allows them to move in and out. The person demonstrates how the blocks can be pushed together to form a square shape and then pulled apart to form two triangles. The blocks are made of light-colored wood and have a smooth finish. The metal rod is silver and has a screw-like design on one end. The person's hands are visible in the video, and they are manipulating the blocks against a black textured background.