The English term “tray pack” refers to a type of packaging that is ready for immediate placement in stores by the retailer upon opening. The consumer sales units (CSUs) inside require no further handling before being offered for sale. The external dimensions of this packaging are specifically designed to integrate seamlessly into the store shelf and allow for safe and organized stacking. In French, the expression “prêt-à-vendre” or PAV is sometimes used to refer to this type of packaging.