1APPLICABLE MODEL: Suite upgrade to new design version, can directly replace the original for Bambu Lab P1 X1 hot end, can be used with other design, 500 degrees Celsius high temperature resistant printing, fast heat transfer 2STABLE FIXING: Screws fixed radiator and heat sink and heating block with three screws fixed on the side, bring stable connection, removable replacement, reduce the cost of use 3ALL METAL SMOOTH INSULATION: The hotend kit consist of bimetallic copper and Ti alloy insulation parts to provide better heat dissipation. The throat is tightly integrated with the heating block, and the throat structure is upgraded. The step limit is added at the fitting point with the heating block, which reduce the situation of material leakage and shedding 4RELIABLE MATERIAL: Heating block upgraded to Cr Zi copper Ni plating treatment, high temperature resistant, fast heat conduction. The nozzle is made of SKD11 quenched steel, which has been quenched and hardened with surface DLC nano treatment above 550 degrees, more wear resistant and has longer service life 5NO BLOCKAGE: The inner wall of the throat and the inner wall of the nozzle roughness is Ra0.4, the throat is Ti alloy, the wall thickness is 0.25mm, reduce the blockage situation, improve the printing quality 1 x Extruder Kit 2 x Wrench 1 x Hardened Steel Nozzle 1 x Silicone Socket 1 x Hex Wrench 1 x Thermal Conductive Grease 1 x Accessory