Favorite Dog Plastic Training Tray Potty High Protection Portable Pad Holder Large Size: 22" L X 16" W X 6" H, grid is 18" L X 12.5" W, low opening for easy access, allows to put the pee pad back under the grid or on top of it; fold the training pad edges and snap into place, it would bring pet good experience Premium quality: Sturdy PP plastic and practical snap on/off grid system supports long lifetime, non-toxic potty and grate keep home clean and odor-free Buckles Design: Buckling up dog training pad firmly keeps sloppy pet from chewing up the potty pads, avoid dog creating more waste High Wall: Bottom grid provides more floor protection than pad alone, then three walls refuse accidental urine leaking, protect floor from spills, and keep paws dry; definite height helps correspond pet train a clean toilet usage Easy Clean: Removable tray makes cleaning easily; compared with rinsing the grid after dog pees or poops, replacing the pad is easier