Bidet Seat Attachment. Customizable Knob Finishes. Adjustable Water Pressure, No Electricity or Batteries Requires, Easy DIY Installation, Dual Nozzle, Treat yourself to the ultimate bathroom upgrade with the Bio Bidet Essential Bidet Attachment. Designed for an easy DIY install, this premium model offers superior cleaning results at an affordable price. Features: Convenient side controls, posterior wash, feminine wash, ergonomic design. Fits Round and Elongated toilets.