The Dr. Joel Kaplan Pump Cylinder 1.75 I.D. is for permanent increase in penis length, penis girth and scrotal enlargement. Dr. Joel Kaplan, the world's most trusted name in Penis Enlargement, since 1991. Dr. Joel Kaplan's Pump Systems are FDA regulated devices that work effectively. Dr. Kaplan has been in business for over 20 years and has established the most reputable enlargement products on the market. Some other benefits of using Dr. Kaplan's pump systems include: Gain 1-3 Inches and 25% in Girth, Permanent and Safe, Support from Dr. Kaplan and his Qualified Staff, Resolve E.D. and Premature Ejaculation, Correct Curvature, FDA Registered Medical Devices. Inner length is 9"