Leg curl machine 3D model is available on CGTrader for $19. Original author: dragosburian. Specs: 15249 polys, 20846 verts.
BLEND (Blender, filesize: 59.9 MB), OBJ (OBJ, filesize: 28.6 MB), FBX (Autodesk FBX, filesize: 29 MB), DAE (Collada, filesize: 28.9 MB), STL (Stereolithography, filesize: 583 KB)