Get 2Pcs Silicone Protective Case for 3D Printer Heating Block Hotend Description: ✔️Non-stick silicone material made. ✔️Keep the hotend temperature extremely stable. ✔️Extend the life of the heater block and extruder by keeping it cleaner. ✔️High-temperature resistance: 280℃ Specifications: Type: MK8 Material:Silicone Color: Yellow Size: 20 x 20 x 10mm(approx.) Package included: 2 x MK8 Silicone Cover 2Pcs Silicone Protective Case for 3D Printer Heating Block Hotend See detail