The Luv Balls are a sexy modern twist on the ancient Chinese Ben Wa balls. Still just as functional by promoting strengthened vaginal muscles and more intense orgasms, this updated style is designed for heightened stimulation. The soft silicone coating has several indented ridges that create further sensations against the vaginal walls. Inside each ball there is a metal rolling weight that creates a natural swirling motion as you squeeze your PC muscles and shift your body. Each ball is connected by its smooth silicone coating, and the soft durable string makes them easy to remove.