Standard V6 silicone socks are made to insulate the heater block and nozzle for more efficient, stable thermal performance.  Made from an inherently non-stick high-temperature silicone, these socks help keep your nozzles and block free from plastic residue. We supply the socks in a 3 pack because while they are designed to be as durable as possible, they will eventually wear away or perish. Your mileage

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