World's Best Good Habits Multi Cat Corn Cat Litter Unscented, Natural Top Entry Litter Box with Drawer for Large Cats Bonvovo HE 191 INC. 3:16 Lure Company Real Deal Armageddon Original Wake 1 up 2 up 1up 2up Smart Cat Litter Box for Multiple Cats Self Cleaning Meowant Hooks Circle Hooks Asst. Sport Fishing Supply Store South Florida Grand Slam Sportfishing Grand Slam Tackle Size of the litter box matters more than most people think. A litter box that's too small can affect how your cat moves, digs, and even whether they use it at all.