The video shows a close-up of a person's hand holding a small, round, gold-colored object between their fingers. The object has a small hole in the center. The person uses a pair of tweezers to hold the object and then uses a small metal tool to push a blue-colored substance into the hole. The substance appears to be a type of adhesive or sealant. The person then uses the metal tool to spread the substance around the edges of the hole, ensuring that it is evenly distributed. The video ends with the person using the metal tool to smooth out the substance, making sure that it is flat and secure.