Similarly, you may ask, what is the width of a product?
Product Length: refers to total number of products sold within a product line. For example, Asus may have 10 different types of netbooks. Product Width: refers to number of separate product lines offered by a company.
What do you mean by product mix?
Product mix, also known as product assortment, refers to the total number of product lines a company offers to its customers. For example, your company may sell multiple lines of products. The four dimensions to a company's product mix include width, length, depth and consistency.