Eco-friendly scratching board for cats. Handmade. The scratching board made of corrugated cardboard is a tool crafted from sheets of corrugated cardboard, designed to provide cats with a safe and suitable way to satisfy their natural need to sharpen their claws. The scratching board is an excellent way to keep your cat’s claws healthy, prevent damage to furniture and other items, and also serves as a suitable place for your pet's play and sleep.