The document discusses various concepts related to products, including: 1) Products can be classified based on their tangibility and durability into services, durable goods, and non-durable goods like fast-moving consumer goods (FMCG). 2) A company's product mix includes their product lines and depth/breadth of offerings. They pursue strategies like line extensions, modernization, and flanking to manage their product mix. 3) FMCG have characteristics like low margins, high volumes, and stock turnover which influence marketer's strategies like multi-brands, extensions, and developing new product lines.