In the video, a person is seen holding a ball of yarn and a crochet hook. The person is demonstrating how to tie a knot with the yarn. The yarn is brown and the crochet hook is yellow. The person's hands are visible in the frame, and they are using their fingers to manipulate the yarn and hook. The background is blurred, but it appears to be a table or desk. The person's movements are deliberate and precise as they tie the knot.