In the video, a man is seen holding a green and white caulking gun. He is standing in front of a white toilet and appears to be preparing to use the caulking gun. The man then proceeds to squeeze the trigger of the caulking gun, which causes a white substance to come out of the nozzle. The substance is likely caulk, which is used to seal gaps and cracks in plumbing fixtures. The man continues to squeeze the caulking gun, applying the caulk to the toilet. The video provides a close-up view of the caulking gun and the man's hands as he works.