In this video, a person is seen using a hammer to sharpen a knife. The knife is placed on a stone, and the person is holding the hammer with one hand while striking the knife with the other. The hammer is made of metal and has a wooden handle. The stone is circular and appears to be made of a rough material, possibly sandstone. The person is wearing a brown shirt and is standing in front of a brick wall. The knife has a silver blade and a black handle. The person is using a back-and-forth motion to sharpen the knife, and the sound of the hammer hitting the knife can be heard.