2 Pack XL Stainless Steel Litter Box Enclosure with Lid, Stainless Steel Cat Litter Pan for Big Cats, Large Metal Litter Box with Anti-Leakage High Wall, Non-Sticky Easy Cleaning Cat Litter Tray

My litter boxes have a snap-on piece on the top and it seems to resolve the problem. My cats used to pee just off the side by accident and would throw litter around but that all stopped after putting the attachment on it. These are the litter boxes I have