Encore Medical Revive Custom Battery Vacuum Therapy System, Drug-free The Encore Revive Custom Battery Operated Vacuum Therapy System includes five incrementally different size tension rings, ring loading cone applicator, easy-to-use twist ring ejection system, carrying case, personal lubricant, instructional DVD and a user manual for patients. Completely safe. Immediate results. Completely drug-free. No serious or damaging side effects. Non-prescription treatment available to treat erectile dysfunction. No appointments or visits to the Doctor. Approved by the FDA and recommended by The American Urological Society.