This 20-410 black cosmetic treatment pump, made of polypropylene plastic, comes with a ribbed skirt; and a clear P/P hood or cover to prevent accidental dispensing. This pump has a 4 inch long dip tube; and dispenses approximately 130ml with each pump. When the cap is removed, the treatment pump can be easily depressed with a fingertip to apply your favorite gel, moisturizer, or serum. Note: The dip tube length may vary as a general guide provided by the vendor. It is critical to know the exact size requirement as there is no universal measurement. The dip tubes can also be trimmed to size for a better fit.