Bearing Steel Rod D type shaft Diameter 5mm Flat Linear Round Length 30/60mm Motion Parts flatFeatures:brand new and Shaft Length : 30mm 60mm.Shaft-Round Outside Diameter : 5mm Flat Outside Diameter : 5mm x (4.45-4.55)mm.Material : Bearing Steel Stainless steel : Round Flat.Fit for : VORON 2.4 Motion Parts.Specifications:Material : Stainless steelDiameter: approx. 5mm/0.2inLength: approx. 30mm/1.18in, 60mm/2.36inPackage Includes:4PCS x 5x60mm Shaft Flat)1PC x 5x30mm ShaftNote:Due to the problems of lighting effects and angles, there will be certain tolerances in the product, please understand.Please allow 0-2mm error due to manual measurment.