Answer:
product bundle
Explanation:
Product bundling is a sales promotion strategy that involves marketers offer a discount on two or more items sold together as a single item. Complementary goods, or similar items are packaged and offered to consumers. Product bundling is also called package deals.
Product bundling may be targeted to a particular item on the bundle or both. Due to the discount offered, product bundling increases the revenues from the products on offer. It also can increase the market share for each of the products on offer. In this case, a haircut and a conditioning treatment are complementary services. Bundling them together encourages consumption for both.
