The hotend silicone sock is made of high-quality silicone for high-temperature resistance (it can withstand up to 300 °C).
The silicone sock provides the best heat insulation for the hotend to maintain a constant temperature during printing and also prevents the filament from sticking to the hotend in the long term.
Installation
Details regarding the replacement of the hotend silicone sock can be found on the Bambu Lab Wiki.
What's in the Box
Hotend silicone sock x 3
Compatibility
A1 Series