Product line: A group of related products manufactured by a single company. In marketing jargon, product lining is offering several related products for sale individually. Unlike product bundling, where several products are combined into one group, which is then offered for sale as a unit, product lining involves offering the products for sale separately. A line can comprise related products of various sizes, types, colors, qualities, or prices.
For example, a cosmetic company's makeup product
line might include foundation, concealer, powder, blush, eyeliner, eye shadow,
mascara and lipstick products that are all closely related. The same company
might also offer more than one product line.