As was discovered by Dr. Arnold Kegel in his work in the 1940s, a toned PC muscle is important for pleasurable feelings and can lead to stronger orgasms. The Energie is the perfect weight resistance trainer, as it provides a safe and pleasurable way to maintain and tone your PC muscle. The Energie is sleek, effective, and ergonomically shaped for ultimate comfort. Made with ABS plastic. 6 1/2" long and from 1 1/4" to 1 1/2" in diameter. Approximately one pound.