In the video, a man is seen working on a bicycle. He is using a tool to tighten the chain on the bicycle. The man is wearing a black shirt and is standing in a workshop. The bicycle is clamped in place, and the man is using a wrench to tighten the chain. The video is shot from a close-up angle, focusing on the man's hands and the bicycle. The lighting in the workshop is bright, and the man's movements are steady and precise. The video is shot in high-definition, and the sound of the wrench turning can be heard in the background.