Scratching is healthy for kitties because it helps them exercise， stretch， relieve stress and boredom and mark their territory. With the Sofa-Scratcher Furniture Protector Squared Cat Scratching Post， you can allow your feline friend to fulfill her scratching instincts while keeping your furniture protected. This version is specially designed for corners (90-degree angle). Simply attach the low-profile base to the contoured， sisal-covered scratch panel， slide it under the leg of your sofa to keep it in place， and watch your cat scratch away to her heart’s content!