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With our patented Super Skin masturbation sleeve and specially-designed inner canal texture, the Endurance Jack provides the most intense and pleasurable training experience possible.

When you masturbate using the Endurance Jack by Fleshjack, not only will you be improving your sexual stamina and techniques, you'll experience the intense orgasms that can only be achieved by using Fleshjack sex toys for men. If you can last ten minutes in the Endurance Jack, you can last twenty minutes in bed with anyone. The Endurance Jack by Fleshjack comes complete with black case.