The Flexible 8 Inch Silicone Nozzle gives you a super deep clean. This long nozzle reaches deep into your rectum to give you a flow of water where you need it most. This slim nozzle is 0.75 inches in diameter. The part where it screws on is 0.80 inches in diameter. We like this nozzle because it is super-smooth, virtually seamless, comfortable, and flexible. It is made of hygienic silicone, and is latex-free and phthalate-free. The bottom four inches are rigid, while the top four inches are flexible.