A primarily aluminum extendable flatbed trailer has front and rear flatbed sections adjustable to various trailer lengths. The information recordingdisplaying card includes a visible information display part and an invisible information recording part. Another aspect of the present invention employs a flexible cable interconnecting a rear linkage with a forward pivot assembly to pivot the first roof section relative to the second roof section. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into X00D861 through backcross conversion andor transformation, and to the maize seed, plant and plant part produced thereby. The molded body has a cavity surrounded by the magnetic force detectors.