This class collates all the information about a gr:ProductOrService included in a bundle. If a gr:Offering contains just one item, you can directly link from the gr:Offering to the gr:ProductOrService using gr:includes. If the offering contains multiple items, use an instance of this class for each component to indicate the quantity, unit of measurement, and type of product, and link from the gr:Offering via gr:includesObject. Example: An offering may include of 100g of Butter and 1 kg of potatoes, or 1 cell phone and 2 headsets.