A method for handling goods returned by customers of a plurality of different merchants. The hearing aid module contains a speaker or auditory transducer, a battery or other power source powering the module, signal processing circuitry, and a microphone. The stent is self-expanding or uses a balloon to expand the stent in the heart wall. The unique design of this grabber machine is that it allows two or three players to operate on the machine concurrently and independently using different sets of mechanical arms and rockers. Unambiguous pixel matches in the current iteration then are found using a novel correlation technique and based on a correlation score associated with a pixel match. A camber gauge having longitudinal levels is detachably mounted to the attachment to measure the attitude of the differential or the transmission to which it is mounted.