Thanks for posting the Mayo Clinic YouTube video for the Penile Traction Device. Additional info from the page - "Landon Trost, M.D., provides background information as to why a new penile traction technology was developed by Mayo Clinic and licensed to PathRight Medical (https://www.restorex.com/). Common problems with existing technology included painful or ineffective clamps, lack of sufficient traction, inability to get feedback on the amount of traction required, need for extended use (greater than 5-9 hours daily), and a lack of ability to provide counter-bending forces. To learn more, visit http://mayocl.in/2zlhbmy&;