SAY NO TO CHEWED UP PLASTIC FLOOR LINERS: Don’t let your dog cut itself on sharp edges or swallow polypropylene/ABS plastic pieces. Superior to plastic: This strong tray won't freeze or crack, emits no harmful plastic chemical fumes, and won't absorb pet odours. Tray also functions perfectly as a standalone floor protector (great for putting pet food bowls, muddy boots and shoes, pet potty pads, grease drips and more). Notice: Works well in most slide-out style crates (please carefully measure your interior dimensions to confirm this tray will fit your crate). When measuring your crate, please choose a tray that is 1/4" smaller (in both width and length) than your crate's interior dimensions.