Compatibility - Fit for Creality Ender 3/3 Pro/3 v2, Ender 5/5 Plus/ 5 Pro, CR-10/CR-10S/CR-10 S4/CR-10 S5/CR-10 mini, Anet A8, etc. MK7, MK8, MK9 hotend.
Upgraded Material - The MK8 silicone sock made of heat-resistant, non-stick silicone material, high-temperature resistance: 280℃.
Function - The silicone cover will keep your heater block clean and repel plastic of burnt, blackened and build-up, so that can extend the life of the heater block and extruder; and helps to keep the hotend temperature stable.
Durable to use - The silicone case has good flexibility and can be placed close to the heating block, it is easy to install, stable and not easy to fall off, very strong.