1、Good Workmanship: This 3D printer hot end cover has good workmanship and very good edge treatment, the outer wall is very sleek with perfect edges that won't interfere with the use of the hot end. 2、Excellent Silicone Material: This printer heater block silicone cover is made of excellent silicone material, which is abrasion resistant and long lasting, and can work under 300 °C for a long time. 3、Good Compatibility: This 3D printer hotend protective cover has good compatibility and is compatible with for K1, for K1 Max, for K1C, for Ender 3 V3, for Ender 3 V3 KE and for CR10 SE 3D printers. 4、Multifunctional: This hot end protective cover is multifunctional and effectively isolates the sensor from the external environment, preventing the sensor from chemicals, dust, water vapor and other external influences that may cause damage or error to the hot end temperature sensor. 5、Wide Application: This 3D printer hotend heater block cover has a wide range of applications, it can be used for crafting, modeling, industrial printing and so on, which is very practical.