NWOT Sisal Scratching Post for Doorknob with a Free Scratcher Refill

New without tags, sisal doorknob scratching post from Whisker City. Never used. Easily hangs from any door. It measures 20" in length and 5-1/2" in width. A free corrugate scratcher refill with catnip is included with this listing. It's new in the package, never used. It measures 18" in length and 4" in width. It fits inside the ramp of a cat tower. Tower not included.