The Creality K1 silicone sock is a protective cover designed specifically for Creality 3D printers. This sock is made of high-temperature resistant silicone material and is placed over the hotend (nozzle and heater block) of the 3D printer. Its primary function is to insulate the hotend, which helps in maintaining a stable temperature during 3D printing and prevents temperature fluctuations caused by drafts or cooling fans. By keeping the temperature consistent, it can improve print quality and reduce the likelihood of issues such as filament jams or warping. Additionally, the silicone sock helps to prevent filament residue from sticking to the hotend, making maintenance easier and prolonging the lifespan of the printer components.