Abstract: A kit comprising a refill bottle comprising a refill body, a dispensing mechanism and a refill mechanism; a master bottle provided with a liquid reservoir, and comprising a master body, a pump for dispensing the liquid from the reservoir, and a stem fluidly connected to the pump and outwardly protruding from the master body; and an engaging widget configured to allow stable docking of the refill bottle with the master bottle. The stem is positioned within the engaging widget, and the kit is configured to allow a docked refill bottle to be filled with liquid from the reservoir.