A device for gripping, holding, releasing, and conveying objects of varying sizes and shapes, comprising an elongated torus enclosing a fluid material, an outer roller assembly, and an inner roller assembly. For example, three buffers are allocated in the cache memory for each video stream, and at any given time during sequential access, a particular one of the three buffers is a middle buffer from which pre-fetched data is streamed to the host application. Novel oils containing fatty acid chain lengths of C8, C10, C12 or C14 are also disclosed and are useful as feedstocks in the methods of the invention. The first inverter converts the power, generated by the solar cell array, into power required by a grid line. The chassis base is bent with a curvature such that the curvature of the chassis base compensates for a curvature of the bent plasma display panel.