For extra peace of mind… (for anal use only, never use a vaginal douche! Ask me why if you don’t know! I didn’t know either!)
The Ultimate Douche(TM) has a soft and pliable transparent plastic bottle and two detachable interchangeable screw-mount nozzles. The slim sized nozzle is .375″ in diameter, and the regular sized nozzle is .5″ in diameter. Both nozzles are 3.375″ long. Designed for comfort and simplicity, this system is easy to use and easy to clean. Water-soluble lubricant is recommended for the nozzle tips for ease of penetration.