The Tenga Men's Training Cup Keep Training Lv.4 is part of a series of masturbation cups specifically created by Japan's leading adult brand to help guys who ejaculate prematurely. Using this masturbation toy trains your penis to enjoy stimulation for longer and so delay your climax. This medium hard type is recommended for use after you have worked your way up the training program designed by Tenga, whereby you start with the softer/looser cups and gradually increase the intensity of sleeve as you progress through the cups until you are ready to last longer even when penetrating a tight hole.
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