Unlike conventional hand pumps, the Dr. Joel Kaplan Electric Male Enlargement Pump system is more efficient because it creates a continuous and even flow of vacuum pressure. In addition, Dr. Kaplan’s system is personally gratifying, feels great and is ideal for self-stimulation due to the variable pulsation feature only available with the electric pump. System includes: a two year warranty on motor, comes completely assembled, 15′ of tubing, constriction rings, 2 diameter cylinder, instruction booklet, and storage bag.