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Product Title: 3pcs 3D Printer Parts Heater Block Silicone Cover for Sprite Extruder Ender-3 S1/Ender-3 S1 ProThis set of 3 silicone covers is designed specifically for the Ender-3 S1 and Ender-3 S1 Pro 3D printers. Made from non-stick silicone material, these covers help to keep the hotend temperature stable, resulting in better print quality. They also help to extend the life of the heater block and extruder by keeping them cleaner. These covers are easy to install and remove, making maintenance and cleaning a breeze. Upgrade your 3D printing experience with these durable and efficient silicone covers.