1 x S1 Genie Heating Block Kit - High Temperature Upgraded Version 300C, 2 thermistors. (When the printing temperature exceeds 300C, you need to use the silicone sock in advance). [Extra Thermistors] The package includes two additional upgraded thermistors that can withstand long-term, high-temperature printing up to 300C, improving the stability and reliability of the printing process. [Bimetal Heatbreak Throat Tube] Crafted from a combination of TC4 titanium alloy and copper, this innovative design effectively reduces upward heat transfer (7 W/mK) while improving heat dissipation (400 W/mK) for stable, high-quality 3D printing. [Nickel Copper Plated Nozzle] It has an inner hole and outer surface, which is smoother and more stable for material extrusion. It can be applied to various filament materials including PLA, TPU, ABS, etc. The maximum working temperature is 500C. Color: silver + red + black Material: copper + aluminum alloy Package Contents: 1 x S1 Genie Heating Block Kit 2 x thermistors Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.