Uxcell M6 Throat Tube Extruder Brass Nozzle Heater Block Hot End for 3D Printer 1.75mm Filament(with Heating Block Sponge ) Stainless Steel Throat Tube: Length: 30mm/1.18inch; Diameter: 6mm/0.23inch; Fit 1.75mm Filament for 3D Printer. Extruder Brass M6 Nozzle 0.4mm Print Head: Length: 13mm/0.51inch; Diameter: 6mm/0.23inch. Extruder Silver Heater Blocks Heat Evenly. Size: 20x20x10mm/0.78 x0.78 x0.4 (LxWxH). Compatibility: 3D printers accessories for all 1.75mm ABS PLA 3D printers.Package Content: 3pcs x M6 Nozzle Throat Tube 3pcs x Print Head Nozzle 3pcs x Hot End Heater Blocks 3pcs x Heating Block Sponge