Used 7 sheets, remaining 5 sheets for sale. I'm selling these because I'm a cat litter nomad and have settled on clumping cat litter after using a system toilet. Purchased in September 2025. Opened, please refrain from purchasing if you are concerned. Deodorizing and antibacterial pet sheets that don't need to be changed for a week. Please note that the item will be shipped in simple packaging. - Brand: Nyan-tomo Clean Toilet - Product Name: Deodorizing and Antibacterial Sheet - Features: No odor, no need to change for a week