Auto cat box - works really well- cleans after the cat uses it keeps the solid waste in the tray under cover so the smell is gone. Worked really well for one cat, then 2 but when we added the third cat it was too much for this style of litter box. We had to change to a larger box. I bought the stainless litter pan so you can use litter you can buy at a pet store or Walmart. $50 We can meet in Glasgow.