General In Use: This item with size 28mm (Length) * 7mm (Diameter) and thread M6.
Good Material: Made of stainless steel, durable.
Against Swelling And Clogging: Helps to avoid material swelling and clogging.
Against Leakage: Fits with the docking accessory, effectively prevents material leakage.
Good Accessory: Good 3D printing accessory for your printer.