Explore your wild and adventurous side with our OptiSex Silver Ben Wa Balls. This elegant set includes 2 insertable solid Ben Wa Balls that provide silent self-perpetuating internal vibrations. Ideal for Kegel strengthening exercises. Solid steel. Completely waterproof for fun in and out of the water. Non-toxic Phthalate-free and body-safe. Easy to clean and maintain. Balls have an orgasmic 2.5" girth (0.75" diameter) and are intended for vaginal use. FREE convenient stylish organza storage pouch is included. Perfect as a gift to your partner, a gift with a proposition. Eco-friendly box-less package for your benefit and the Earth's.