Product Skin can also be said to be the aesthetic wrapping (or style) in which the product appears to us. The elements of design, such as shape, colour, texture, material, and ornament, when put together, convey the messages that make one product different from another. The skin is also a trigger for what makes one product different from another. The skin is also a trigger for what makes the object desirable beyond its function. The product can be made into two parts. The actual engineering that makes it work, the appearance that makes it work, and the appearance, or the cover, under which the product functions. In some cases, the product and the skin form a combined function as a whole. The function of the product itself gives it a form.