Premium Quality: MK8 nozzles are made of high quality Hardened Steel and Brass.Heavy duty and provide a long service life.Easy to install and change Applicability: MK8 extruder nozzles fit for 3D Printer Makerbot Creality CR-10, MK8 Makerbot Reprap Prusa I3, compatible with all 1.75mm PLA ABS 3D printer. Fit exactly like the original Parameter: Input diameter 1.75mm; output diameter 0.4mm; Out thread: M6; (5 Pieces) Hardened Steel Nozzle 0.4 mm/ 1.75 mm 3D Printer MK8 Nozzles Tool High Temperature Wear Resistant Compatible with Makerbot, Creality CR-10 All Metal Hotend, Ender 3/ Ender3 pro, Prusa i3 with 10pcs x Brass 0.4mm nozzle with 5PCS Stainless Steel Premium Quality: MK8 nozzles are made of high quality Hardened Steel, Stainless steel and Brass.Heavy duty and provide a long service life.Easy to install and change.3 Kinds Of Durable Nozzles To Satisfy Diverse Needs: 20 Pcs Nozzles Set Are Made Of 3 Different Materials Of Progressively Higher Quality, Which Contains 10 Br