UNIVERSAL UPGRADE V6 HOTEND KIT]: Compatible with all 1.75mm E3D V6 Makerbot 3D printers; The HotEnd features an all-metal design for high temperature performance. Standard Brass Nozzle: The nozzle is made of high-quality brass, which is durable and has a long service life. simple installation and replacement. Includes 5 nozzles (0.4mm/0.4mm/0.4mm/0.6mm/0.8mm). Meet your various printing Require Advanced cooling system: 24V/40W heating, the temperature can reach 350C, we adopt 3 coolingFan (30*30*10mm). Multi-angle rapid heat dissipation. High quality aluminum radiator for improved heat dissipationDissipation efficiency Assembly required: The package includes all parts. no welding, noTape, no adhesive required for assembly and maintenance, easy installation