SmartyKat Super Scratcher+ Double Wide with Catnip Infusion Technology Corrugate Cat Scratcher. Uses a patent pending process to infuse highly concentrated catnip between each layer of cardboard, so the potent catnip scent is released every time your cat scratches. The surface is also coated with catnip on both sides, so you can flip over when worn for double the scratching. Catnip naturally stimulates most cats, providing a burst of playful energy, usually followed by a mellow period. Can be used flat or angled.