This cosmetic treatment pump is a black ribbed 20-400 pump with a 2 7/8" dip tube and 130mcl of output. This treatment pump can dispense many products from lotion, to liquid make-up, to oils and liquid soaps. Treatment pumps are well known for dispensing precise amounts of product, most commonly thinker liquids including gels, heavy creams ect. and come in a variety of outputs. They pair perfectly with any of our plastic or glass bottles.