Throb - Dual-End Vibrating Stamina Trainer Edging Delay Endurance Builder Male Masturbator

Build stamina from 3-5 minutes to 10-15 minutes with targeted stop-start edging training.;Dual channels offer tight spiral grip on one end and soft peristaltic waves on the other.;Flip between intense and teasing ends to simulate trading lovers mid-session for ultimate thrill.;10 vibration patterns designed specifically for mastering control and prolonging pleasure on the brink.;IPX7 waterproof with quiet operation under 55dB and ergonomic grip for 50-minute immersive sessions.