Contains silver ions. This is a deodorizing microcapsule replacement sheet for the deodorizing toilet that has a strong deodorizing microcapsule. It thoroughly absorbs a week's worth of urine, and the antibacterial agent effectively reduces odor. For 1 cat (up to 17.6 lbs (8 kg). Remove poop quickly Silver ion formula. Suppresses 99.9% of odor-causing bacteria. *Antimicrobial test results from a third party agency. It does not inhibit all bacteria. The matching deodorizing aromatic ingredient has a strong deodorizing property. The surface of the sheet is white, so it is easy to see and check the colors of the oisco.