1Multi-size extruder nozzles - 3D printer nozzles are available in 7 sizes (output diameter), 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.8mm, 1.0mm. 2External thread: M6, different sizes to meet your various needs. 3Wide compatibility - Compatible with all 1.75mm ABS / PLA 3D printers, can be used for Anet A8 / Creality CR-10 / Tevo Tarantula / MK8 makerbot / copier / Prusa i3 / Reprap printers, etc., but NOT for flashforge creator pro. 4High-quality brass material - Extruder brass nozzle is made of durable brass material, which is not easy to rust or corrode and has a long service life. 5Sufficient quantity - The package includes 18 3D print heads: 2 x 0.2mm, 2 x 0.3mm, 6 x 0.4mm, 2 x 0.5mm, 2 x 0.6mm, 2 x 0.8mm, 2 x 1.0mm. Features: Multi-size extruder nozzles - 3D printer nozzles are available in 7 sizes (output diameter), 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.8mm, 1.0mm. External thread: M6, different sizes to meet your various needs. Wide compatibility - Compatible with all 1.75mm ABS / PLA 3D printers, can be used for Anet A8 / Creality CR-10 / Tevo Tarantula / MK8 makerbot / copier / Prusa i3 / Reprap printers, etc., but NOT for flashforge creator pro. Ideal nozzle replacement - When the nozzle is clogged, the 3D printing extruder is a good backup or emergency device. Our extruder nozzles can produce consistent printing and no leakage or blockage, providing you with smooth and clean printing. High-quality brass material - Extruder brass nozzle is made of durable brass material, which is not easy to rust or corrode and has a long service life. Sufficient quantity - The package includes 18 3D print heads: 2 x 0.2mm, 2 x 0.3mm, 6 x 0.4mm, 2 x 0.5mm, 2 x 0.6mm, 2 x 0.8mm, 2 x 1.0mm. Specification: Type: Extruder Brass Nozzle Printhead Material: Brass Compatibility: for Anet A8 / Corey CR-10 / Tevo Tarantula / MK8 makerbot / copier / Prusa i3 / Reprap printer Consumable diameter: 1.75mm Output diameter: 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.8mm, 1.0mm Weight: Approx. 35g Quantity: The package includes 18 3D print heads 2 x 0.2mm, 2 x 0.3mm, 6 x 0.4mm, 2 x 0.5mm, 2 x 0.6mm, 2 x 0.8mm, 2 x 1.0mm. Package list: 2 * 0.2mm MK8 Exturder Nozzles 2 * 0.3mm MK8 Extruder Nozzles 6 * 0.4mm MK8 Extruder Nozzles 2 * 0.5mm MK8 Extruder Nozzles 2 * 0.6mm MK8 Extruder Nozzles 2 * 0.8mm MK8 Extruder Nozzles 2 * 1.0mm MK8 Extruder Nozzles How to Replace the Nozzle? Step 1: Turn on the 3D printer, heat the nozzle and heat to the target temperature (PLA: 180-220, ABS: 240-280). Step 2: After the heating is complete, turn off the printer and clamp the heating block with a wrench. Then use a socket screwdriver to unscrew the old nozzle extruder. Note: Do not touch the old nozzles and heat blocks to avoid burns. Step 3: Wrench the hearing block and use a socket screwdriver to screw in the new nozzle to ensure tightening.