Gratta needs no wall and no drilling. It stands on its own with real stability, an elongated wooden frame holding a cardboard scratch surface that invites a cat to stretch out to full length while it claws. Studio nooi added a gentle dip in the middle, so the same board becomes a cozy nook for lounging or a nap when the scratching is done.The cardboard insert is replaceable and eco-friendly, and the lacquered wood frame comes in three finishes to suit the room. Swap the insert when it wears, keep the frame.