[Compatible 3D Printers]: The 6pcs silicone socks are compatible with A1/A1 Mini 3D printers. Please confirm your 3D printer model before ordering. [Stable and Reliable]: The heating block silicone cover is made of heat-resistant, non-stick silicone material that withstands temperatures up to 260 degrees Celsius. It improves thermal insulation to reduce temperature fluctuations and provides protection against accidental contact with hot surfaces. [High Quality 3D Printer Accessories]: The silicone sock helps keep the heater block clean by preventing burning, blackening, and plastic buildup, extending the life of the heating block and extruder. It also contributes to maintaining stable temperatures at the hot end. [Easy Installation]: The silicone cover sock is flexible and fits snugly around the heating block. It is simple to install without disassembly and remains securely in place during operation. Please note: There may be slight color variations due to lighting and display differences. This does not affect functionality. Thank you for your understanding. Color: Black Material: Silicone Package Contents: 6 x Heater Block Silicone Socks Note: Only the items listed are included. Light reflection and different displays may cause the color in the image to vary slightly from the actual product. Measurement error allowed is +/- 1-3 cm.