Duck Extra Power Toilet Shield Spring Flower is a household grade disinfectant that kills 99.9% of germs. Stain protection between cleans.Unique Neck Better reach = better cleaning.A unique formula that cleans and repels tough stains and protects against soil builds up. Duck Extra Toilet Shield will help give your toilet bowl a deep thoroughly clean, keeping it cleaner for longer. – Kills 99.9% of germs. – Cleans and removes tough stains. – Creates an invisible protectives barrier against stains and soil build-up. – Reaches hidden germs and grime under the rim. – With uplifting Duck fragrances. – Suitable for Septic tanks.