Replaces shampoo and water. Very easy to use in hospitals and carehomes. Single use. The cap is impregnated with a mild, creamy shampoo. Microwave for 20 seconds. Absorbs impurities such as gel, dirt and even blood. After use, hair is almost dry and does not need to be rinsed or dried. Non-woven. pH neutral. Comes in a box of 24. Sold individually.