Virtual conversion from metal object to dielectric object using metamaterials. 
We propose an illusion device which transforms a perfectly-electric-conducting (PEC) object into a virtual dielectric object with arbitrary material parameters.  Such an illusion device has unconventional electromagnetic properties as verified by accurate numerical simulations.  The presented illusion device is composed of inhomogeneous and anisotropic media with finite and positive permittivity and permeability components.  Hence the designed device is possible to be realized using artificial metamaterials.