With a compact shape and a powerful 4B motor that generates deep bass-style vibrations, the Screaming O 4B Bullets are designed for better, more satisfying sex. Featuring new 4LR44 batteries for extended use and a remarkably smooth, silky feel, these super-powered, one-touch vibrating bullets are waterproof and come in four vibrant colors. Plus, they're packaged in compostable, eco-friendly materials.