Descriptions It is one set 3D printer part kit Nozzle nozzle throat and heating block each part 5pcs You can assemble by youself And it can also be used to replace other similar parts Nozzle parameters Model 0 4mmColor goldMaterial brassSize 613mmInput diameter 1 75mmOutput diameter 0 4mmExternal thread diameter 6mm Throat parameters External thread M6Outer diameter 6mmInner diameter 4mmLength 30mmFilament diameter 1 75mmMaterial Stainless steel Heating block parameters Specification 20 20 10mmMaterial Aluminum alloyPackage Included 5 x nozzle5 x throat5 x heating block