The video shows a glass being broken into pieces. The glass is placed on a surface and is being hit by a hammer. As the hammer strikes the glass, it shatters into multiple pieces. The background is dark, and the lighting is focused on the glass, making the shards of glass visible as they break apart. The hammer is not visible in the video, but the force of the impact is evident from the way the glass breaks. The video captures the moment of impact and the subsequent shattering of the glass in detail.