3-IN-1 DESIGN : If you are looking for a product that will satisfy your cat's hunting and scratching needs, our cat toy is your optimal choice. This interactive cat toy is a combination of cat scratching pad, spring plush ball and track with moving balls, which will provide hours of exercise and self-entertainment..NATURAL SISAL ROPE : The cat scratching pad is made of natural sisal to satisfy your cat's natural instinct to scratch. Compared with the common cardboard, it is more durable. It can well protect your furniture from damage and keep your pet's paw neat and y..SAFE and HIGH QUALITY : The bottom base is made of natural piood, and stable to avoid tipping and shaking. The spring post includes a transparent cover to prevent the cat's paws from getting stuck in the spring..KEEP CATS ACTIVE : The interactive track with 3 moving balls provides exciting movement for your cat to catch and hunt. The moving bell will attract your cat's attention. There is a spring plush ball with an embedded bell that moves back and forth and will make your cat jump around like a wild animal..EASY TO INSTALL : Easy to install. Just screw all the parts together and the cat scratching toy is ready to use (including screws). The detailed manual is included. The bottom includes 4 anti-slip pads for added stability.