Jopto 3Pcs 3D Printer Heater Block Silicone Cover Silicone Sock Heating Insulation Case 280℃ High-Temperature Resistant Compatible with MK7 MK8 MK9 Hotend Compatible with Ender 3 CR-10 ANET A8 (Black)

• Made of a heat-resistant, non-stick silicone material that will repel build-up from molten plastic, help with sticky materials.
• Helps to keep the hotend temperature extremely stable, particularly if you use high-airflow cooling around the nozzle to cool the print. It boost the ability to print large bosses and bridges all while keeping the hotend temperature extremely stable.
• It will keep your heater block clean and free from burnt and blackened plastic.They not only keep the beaker clean, but also keep heat inside the hotend and off your print.
• It can be used to quickly heat the hotend to a desired temperature as the structure of the silicone inside the sock prevents heat from escaping quickly. With this sock you can safely print more exotic materials.
• The sock also acts as an insulator for the print head. It will reduce heat over time and help maintain a constant temperature during printing.

Features: Made of non-stick silicone material, your print head will stay clean and this will prevent the filament from sticking to the heater block or spout. Helps to keep the hot end temperature extremely stable. Can extend the life of the heater block and extruder by keeping it cleaner. High temperature resistance: 280℃. Professional for 3D printer extruder. Material: Silicone Color: Black Size: 2.3 x 2.3 x 1.3cm Weight: 2.7g Package Content: 3 x Silicone Cover