The refurbished precor efx 546i elliptical has been completely re manufactured this is a far cry from second machines that have simply been cleaned up with the unique cross ramp technology this elliptical focuses on lower body muscles key features of the refurbished precor efx 546i elliptical the patented motion allows your heels to remain in contact with foot pedals reducing muscle and tendon stress tap control tactile paddles control cross ramp and resistance fixed handlebars adjustable