Foldable Cat Litter Box with Lid, Enclosed Cat Potty, Top Entry Anti-Splashing Cat Toilet, Easy to Clean Including Cat Litter Scoop and 2-1 Cleaning Brush (Grey) Large. We bought this litter box a few weeks ago. It looks really nice, with two entries - top and side - but it's a bit small for our cat. We attempted to enlarge the top opening as shown in the photos, but it was unsuccessful since the top cover is too sturdy and not easy to cut. However, the cut on the cover hasn't affected the stability of the litter box and its cover. The litter box has been completely washed and sanitized.