APPLICABLE MODEL: Heater block cover is compatible with for Prusa MK3.9, for Prusa MK4, for Prusa XL and does not work with the original for prusa I3, MK2, MK2.5, MK3, MK3S, MK3S+ Mini. EFFECTIVE PREVENT SCALDING: Silicone sock heater block cover can effectively keep heating block and nozzle around clean, which has a certain role in preventing burns.
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