The A488WH is a 100 mL white bottle and a white airless pump with a white overcap. This item ships unassembled in two pieces: the bottle and the pump with over cap. The price includes all three parts: bottle, pump and overcap. The bottle needs to be filled before assembly. Airless pumps feature a unique design, which uses non-pressurized vacuums to dispense the contents of the container without the need for a specific closure. Airless containers are great for foundations, lotions, serums, creams, and more. It's also a great packaging solution that can improve the shelf life of its contents since it reduces unnecessary air contact. It also lessens the need for preservatives, so it can be helpful all-natural products. The internal pump uses small air intake holes at the base and when pressure is applied, it dispenses the product from the opening.