Due to State and Federal Law, we sell Syringes and Needles only to the Medical Facilities. No water needed...produces its own moisture from the air for the intense, moist heat that doctors recommend * Intense, moist heat means faster relief * By increasing circulation and blood flow, it can treat arthritic and rheumatic pain, pain caused by muscle spasms, or inflammation after a day of recreation, gardening, jogging, or even household chores *