The powerful, deep-rumbling 4B Double Wammy vibrating ring doubles couples fun with two separate motors uniquely styled for intense stimulation for both partners. Made of lab-tested body-safe SEBS, the stretchy, comfortable band and dual-action wammy effect offer unmatched stimulation for his and her pleasure.The 4B Double Wammy is packaged using materials that are ethical, sustainable, and eco-friendly. Additionally, is it utilizing new 4LR44 batteries that are child-safe, more reliable, and longer lasting. Screaming O believes in leaving this planet better off than we found it, which is why promoting positive sexual as well as environmental health is important to us.Features: Two 4B motors with deep, rumbling bass vibrations 5 speeds plus 1 pulse pattern Lab-tested, 100% body-safe clear SEBS ring 100% Waterproof 30+ minutes of battery life New reliable and long-lasting 4LR44 battery