Satisfyer Incredible Duo - Penis & Testicles Ring With full-package vibration, the Satisfyer Incredible Duo will give you more.  This double ring is made for harder erections, more sensation for the testicles—plus it can deliver clitoral stimulation during sex. Twelve deep vibration functions power up the Incredible Duo, making high-speed vibes run through the full unit. Scroll through to find your preferred vibration intensity level.  Incredible Duo's smooth silicone rings may be stretched to fit, while the C-ring is made to be snug enough for stability as you move. Made of silicone, the Satisfyer Incredible Duo is waterproof submersible and easy to clean. It's USB magnetic rechargeable and carries a stunning 15-year Satisfyer product guarantee. Dual-ring vibrator for harder, longer-lasting play Extra ring for full-package stimulation High-speed vibrations 12 vibration functions For hands-free clitoral stimulation with a partner, or add more to solo play! Smooth silicone, with flexible rings Waterproof submersible USB rechargeable 15-year Satisfyer product guarantee Available in navy blue.