I purchased this new, but I am selling it because my dog has accidents everywhere except the toilet, and has never even used it. Since it was never used, I will include the filter and sheets. This is a regular-sized dog toilet that doesn't smell for 3 days without replacement. I will ship it in the original outer box as purchased, including the main unit, 2 filters, and 4 sheets. - Brand: unicharm - Size: Regular size - Accessories: Instruction manual - Features: Odorless for 3 days without replacement Thank you for looking.