KONG Scratcher Refills are all you need when its time to replace cats scratcher options. Fitting KONG Incline Scratcher and KONG Double Scratcher, simply refill and continue to satisfy cats natural scratching instincts by encouraging appropriate scratching behavior. Environmentally friendly refillable cat scratchers with bonus Premium North American Catnip are made with renewable resources and are recyclable. Scratch pads are reversible for extended use.