Features • Premium Stainless Steel Construction - Crafted from high-quality stainless steel for enhanced durability and a long service life ensuring reliable performance in your 3D printing projects • Efficient Filament Flow - Features a PTFE tube that promotes smooth and efficient filament passing, reducing clogs and improving print quality for consistent results • Value Pack of 5 Pieces - Each pack contains 5 nozzle throats, providing you with ample replacements to keep your 3D printer running smoothly and minimizing downtime for repairs • Versatile Compatibility - Designed to fit any 3D printer extruder that uses 1.75mm filament, making it an ideal choice for various 3D printing setups and enhancing your printing options • Essential Replacement Parts - Perfect for building a new 3D printer or replacing old, worn-out components, ensuring your printer operates at its best for all your creative projects Features: 1、M6 screw part is made of high quality stainless steel, durable and long service life 2、There is a PTFE tube inside which ensures fluent passing through of filament 3、Comes total 5 pieces in one pack and you may use them for quite a long time 4、Widely used and fit for any 3D printer extruder that uses 1.75mm filament 5、Great parts to built a 3D printer or used as a replacement for old or broken part Specification: Features: M6 screw part is made of high quality stainless steel, durable and long service life. There is a PTFE tube inside which ensures fluent passing through of filament. Comes total 5 pieces in one pack and you may use them for quite a long time. Widely used and fit for any 3D printer extruder that uses 1.75mm filament. Great parts to built a 3D printer or used as a replacement for old or broken part. Specification: Material: Stainless steel, PTFE Size: M6*40mm, M6*50mm(Optional) Thread OD: 6mm Thread ID: 4mm(one end), 2mm(the other end) PTFE Tube Length: 20mm PTFE Tube OD: 4mm PTFE Tube ID: 2mm Suitable For: 1.75mm filament Quantity: 5pcs Package Includes: 5pcs x Nozzle Throats Package List