Features: Safe Material: Drain foam cleaner is made of non-corrosive formula, which is safe in septic-systems. It won't damage your drainage system. Prevent Drain Clogging: Drain foam Cleaner prevents clogging and eliminates bad odors. No Odor: No pungent fumes or leftovers, just cleaner pipes, and less odor. Super Stain Removal Ability: Flushing-the toilet helps remove hard water deposits, water rings, stains, and odors from the toilet-tank. Improves washing and helps to clean the water jet better. Easy to Use: Just pour the drain foam cleaner into the toilet-tank, no need to scrub. Remove-buildup, and rust with powerful cyclonic foam action that does the nasty work for-you. Specifications: Material:Chemical Substance Size:As Picture Shown Content:500ml Note: .Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. .Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 1x Drain Foam Cleaner