The shape that is set with rhomboid-shaped bases is known as a(n):

The shape with rhomboid-shaped bases is known as a cylinder. Cylinders are three-dimensional figures characterized by two parallel bases that are congruent and connected by a curved surface. When the bases are rhomboid in shape, the overall form retains the essential properties of a cylinder while incorporating the unique angles and sides of the rhomboid. In this context, an oblong describes a two-dimensional rectangle or a shape that is longer than it is wide, but does not pertain to a three-dimensional body with rhomboid bases. Thus, the description best fits the properties of a cylinder rather than an oblong, square, or hexagon.