In the video, a person is seen holding a knife and a sharpener. The person uses the sharpener to sharpen the knife, and then tests the sharpness of the blade by running it along their thumb. The knife appears to be a large, fixed-blade knife with a dark handle and a metallic blade. The sharpener is a small, handheld tool with a handle and a sharpening stone. The person's thumb is visible as they run it along the edge of the blade, indicating that the knife is sharp enough to cut without any discomfort. The background is a blue surface, possibly a table or countertop.