Constructed with an internal stainless steel spring and glass ball for quality performance. The Soap pump's delivery is 2 cc, and a thread size of 28/400. The tube size is 9 inches (22.5 centimeters) and can be cut easily to desired length. If you are not sure about the size, test your lotion or soap bottle using a cap from a 2 liter coke bottle. If it fits, this pump will work.