Strict craftsmanship: the nozzle strictly follows the manufacturing standard, greatly extends its service life. The inner wall adopts an arc structure, reducing the pressure required to extrude the filament, can quickly flatten the filament, which improves the stability of the entire nozzle and the printing quality. Precise Design: Cutting with diamond knife makes the contact surface more flat, so as to prevent leakage of the print head and avoid nozzle clogging. Good Quality Material: The 3d printer nozzles are made of high quality brass, sturdy and durable, Cutting with diamond knife, make the contact surface more flat, so that it can prevent leakage and avoid nozzle clogging. Standard Nozzle: The nozzle head outlet is exactly round, minimizes the deviation of the model. Note: Small accessories, please keep away from children. The quality of our products is our priority Strictly follow the standard of MK8 nozzle, high quality brass and rigorous workmanship provide you with a smooth and high resolution 3D printing experience. Advantage 1.Made of durable and sturdy brass which can provide a long service life nozzle life 2.The nozzle surfaces are bright, the chamfers and inner face are rounded and smooth, which can reduce resistance and avoid filament blocking. The contact surface can prevent nozzle leakage. 3. Brass print head with lettering extruder nozzle, which is suitable for MK8 3D printer, and screw head connection can be properly connected to the other end. Good design: The 3D printing nozzle hole is consistent in size and machining, the threads are neat and well-shaped. The size is clear stamped on the nozzles. Brass Material: The extruder nozzle brass print head is made of durable and solid brass material, not easy get rust or erosion, provide long serivice life. Specification Color: Gold Material: Brass Quantity: 16 pcs Package Includes: 4 x 0.2mm Brass Nozzle 4 x 0.4mm Brass Nozzle 4 x 0.6mm Brass Nozzle 4 x 0.8mm Brass Nozzle Warm Note After replacing the nozzle, please recalibrate the distance between the nozzle and the build plate to ensure the quality of the printed parts. Small parts, please keep them away from children. Delivery quantity: 16 pieces Product color: gold Product size: 6 * 13mm Note: manual measurement, please allow an error of 1 - 3cm!!! Yeuri