Richell Expandable Floor Tray for use with Expandable Wood Pet Pen, 2 per Pack Lightweight, expandable floor tray made of poly-plastic material Designed for use with Richell's expandable wood pet pen Protects floors from food spills, water spills, scratches, or accidents Slide 2 overlapping trays apart to expand; easy to clean Measures 37 to 62 by 31.9 by .9 inches