Wide compatibility: nozzle input diameter is 1.75mm, m6 thread, suitable Compatible for 3D printer Makerbot Anet A8, for MK8 Reprap Prusa I3, for Creality CR-10 CR-10S S4 S5 extruder nozzle, for Ender 3 pro-Ender 3 V2, for Ender 5 pro compatible wi Cleaning needles: 5 Flexible stainless steel needles with an of are used to clean 3D printer extruder hot end nozzle clogs and other hard-to-reach areas. equipped with a round tube storage box, convenient for you to carry Practical wrench: A special wrench suitable for nozzles of MK8, which not only makes the adjustment and replacement of the nozzle easier but also avoids damage to the heating block and pulling fragile wires Premium material: MK8 extruder nozzles are made of hardened stainless steel, harder than normal brass nozzles, hardened stainless steel material is durable to use for a long time with good heat resistance and corrosion resistance, abrasion resistan Value for money: the package comes with 4 pieces of hardened steel nozzles, 16 pieces of brass nozzles, 5 nozzle cleaning needles, 1 Nozzle Spanner, efficient quantity to facilitate your timely replacement, achieving quality printing