The FleshLight Stamina Training Unit and the Endurance Jack come with a specialized masturbation sleeve designed to challenge your longevity. You won’t be able to resist shooting your load, but the longer you can train yourself to endure, the longer you’ll be able to maintain with the real thing. Endure with this STU or Jack and you’ll be a legend in the sack! The Endurance Jack comes with the signature silver case and Stamina Training Unit comes in Gold.
