[Compatible 3D Printers]: The 6 pcs silicone socks are compatible with A1 and A1 Mini 3D printers. Please confirm your 3D printer model before ordering. [Stable and Safe]: The heating block silicone cover is made of heat-resistant, non-stick silicone material capable of withstanding temperatures up to 260 degrees Celsius. It improves thermal insulation to minimize temperature fluctuations and provides protection against accidental contact with hot components. [High Quality 3D Printer Accessories]: The silicone sock helps keep the heater block clean by preventing burning, blackening, and plastic buildup. This extends the life of the heating block and extruder while promoting stable hot end temperatures. [Easy Installation]: The silicone cover sock is flexible and fits snugly around the heating block. It is easy to install without disassembly and remains securely in place during operation. Note: Slight color variations may occur due to lighting and display differences. These do not affect functionality. Color: Black Material: Silicone Package Contents: 6 x Heater Block Silicone Socks Please note: Only the items listed above are included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the actual product. Measurement may vary by +/- 1-3 cm.