Features: The nozzles are made of high quality hardened brass. Heavy duty and provide a long service life. Easy to install and change. The 3D Printer nozzles is good abrasion resistance, heat resistance and corrosion resistance, sturdy construction makes them durable to serve you for long for time; Suitable forBIQU B1 um2 3D printing. Specifications: Material:Brass Applicable model: forBIQU B1 um2 Material: Brass Color: Yellow Model: 1.75mm brass nozzle Type: 3D printer nozzle Option Type:0.4mm Nozzle;0.5mm Nozzle;0.6mm Nozzle;0.8mm Nozzle; Note: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 10x Brass Nozzles