Leg curling machine 3D model is available on CGTrader for $19. Original author: dragosburian. Specs: 18726 polys, 24729 verts.
BLEND (Blender, filesize: 83.7 MB), OBJ (OBJ, filesize: 40.6 MB), FBX (Autodesk FBX, filesize: 41 MB), DAE (Collada, filesize: 40.9 MB), STL (Stereolithography, filesize: 731 KB)