3-IN-1 DESIGN : 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 . It can well protect your furniture from damage and keep your pet's paw neat and y..and : 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.