This is a description of the paddle used in leisure boats using an inventor 2020. It has a smooth curve through streamlined wave treatment. Use the inventor2020 to provide four full-size files (ipt, stp, igs, obj, stl)
STL (Stereolithography, filesize: 773 KB), OBJ (OBJ, filesize: 1.65 MB), IAM (Autodesk Inventor, filesize: 3.44 MB), IGE (IGES, filesize: 2.49 MB), STP (STEP, filesize: 2.5 MB)