In the video, a person is seen holding a bolt in one hand and a tube of blue paste in the other. The person squeezes the tube and applies the blue paste onto the bolt. The person then uses a tool to tighten the bolt. The background is a cluttered workbench with various tools and parts scattered around. The person's movements are deliberate and precise, indicating that they are experienced in this task. The blue paste appears to be a lubricant or sealant, commonly used in mechanical work to prevent rust and ensure smooth operation. The bolt is metallic and has a hexagonal shape, which is typical for bolts used in mechanical work. The tool used to tighten the bolt is not clearly visible, but it appears to be a wrench or similar tool. The workbench is covered in grease and oil stains, suggesting that this is a workspace where mechanical work is frequently performed.