OCSOSO Pet Cat Toy Rolling Sisal Scratching Post Trapped Ball Training Funny Training Ball,it is a very good Interactive toy for your cats. Cats are very interested in the smell of sisal,so it will provide your cat with hours of entertainment,ideal for keeping them out of mischief. Designed especially for cats to sharpen their claws. Cats will no longer scratch or damage your sofas and furniture with it. Help you to train and exercise a cat brain and sense organ and avoid the occurrence of depression even if its owner is out