Features: 1. Original tube: Our 3D printer accessories are equipped with 1 meter original tube with the lowest friction on the market. Less friction means higher responsiveness, less retraction, more accurate printing, less extruder slippage, wear and tear, and when printing thick filaments (such as some wood filler or iron Filling) less clogging. 2. V-shaped tube cutter: V-shaped precise positioning, convenient cutting, can greatly improve cutting efficiency, while ensuring that both sides of the PTFE are cut flat to prevent any failure and retraction. 3. Pneumatic connector: Pneumatic connector of PC4-M6 and PC4-M10 is provided, which is convenient for you to choose, which is used to fix PTFE on the extruder and hot end. 4. mk8 silicone sleeve: mk8 silicone sleeve to help keep the temperature on the hot end more stable, which will result in higher print quality and more consistency. 5. 0.4mm nozzle: 2 brass nozzles and 1 stainless steel nozzle. We provide nozzles of two different materials to meet your choice in different scenarios. Notice: 1.Actual color may be slightly different from the image due to different monitor and light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Name: 3D printer accessories Nozzle: material: brass, stainless steel; specification 0.4mm tube material: PTFE Inner diameter (mm): 1.90 +/- 0.05 Outer diameter (mm): 3.95 +/- 0.05 Melting point: up to 340 C includes: 1 x 1M tube 1 x black tube cutter 1 x PC4-M6 pneumatic connector 1 x PC4-M10 pneumatic connector 2 x 0.4mm brass nozzle 1x 0.4mm stainless steel nozzle 3 x mk8 silicone sleeve