Satisfy all of your cats needs with 1 fun playground, providing hours of fun for your pet. The replaceable cardboard scratcher is a great way to encourage scratching and claw maintenance in a postive way. The playground features two movable balls in the outer track. The green MEO planet ball is filled with high quality fresh catnip to drive your cat wild whilst the orange MEOW planet ball features a fun bell to grabs your cats attention. Our product's shape encourages your cat to sleep, the inner scratcher is made from a high density thickened currugated board durable enough for play and sleep.