In this video, a person is seen holding a knife in their hand. The knife has a black handle and a black blade. The person is using their thumb to push the blade in and out of the handle, demonstrating the knife's functionality. The blade is sharp and appears to be made of high-quality metal. The person's hand is steady as they manipulate the knife, indicating their familiarity with the tool. The background is blurred, but it appears to be a white surface, possibly a table or countertop. The focus of the video is on the knife and the person's hand, with no other objects or people visible in the frame.