Cat litter box used for a very short period and it's clean. It has a filter for dust and dirt, and it comes with a scoop. It also has an internal filter to filter waste. And also the food and water bowl, you fill it once and that's it, you don't need to refill it a second time. It has a food dispensing system, meaning you put a specific amount for them and close it, or leave it open to dispense continuously. Water is the same, and it has filtration. I want 150 for them, and I won't disappoint the serious buyer. Negotiable.