Packing: 3 pcs silicone cover for MK7, MK8, MK9 Makerbot heater block.
Compatibility: fit for Creality CR-10/CR-10S S4 S5/CR-10 mini/Ender-2/Ender-3/Anet A8 etc. MK7, MK8, MK9 hotend.
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.
Aokin 3D printer accessories use high quality raw materials and fine workmanship, If you have any question for our product, please feel free to contact us, we will do our best for you.