SmartyKat Scratch Up+ with Catnip Infusion Technology Corrugate Hanging Cat Scratcher. Hangs on doorknobs for a great space-saving solution that caters to cats that prefer to scratch vertically. Scratch Up can also be used on the floor, and is reversible for additional scratching real estate. Each layer of corrugate is infused with concentrated catnip, ensuring long-term appeal and excitement to felines as catnip scent is released with every scratch - never deal with the mess of loose catnip ever again. Assists in curbing aberrant and destructive scratching behavior by providing an appropriate scratching outlet; this hanging scratcher helps draw cats away from furniture to help redirect their behavior. The rough texture of the corrugated surface mimics tree bark, one of the surfaces in nature wild felines and outdoor cats are hardwired to dig their claws into to satisfy their scratching needs. 20.25 In. x 5.31 In. x 1.25 In.