There is referred to an arrangement of vending machines, for example a pay vending machine, for dispensing/emitting of like or unlike product units, comprising a number of product units of each product type in separate storage, together with a mechanism for delivery of selected products to an outlet, such as a drawer or the like, plus a device for the registration of product choice. The arrangement is characterised in that the vending machine comprises a dispenser holder with a number of spaces for placing and fixing of a corresponding number of replaceable housing-shaped dispensers, and where each dispenser comprises: a product storage section in which separate product units can be arranged, and a section for presentation of the product type. There is also proposed a novel device for storing a number of product units in storage, together with the use of the inventions.