It's essential to provide stimulation for your indoor cat to prevent them from becoming bored and engaging in unwanted behaviours such as scratching furniture, bullying other pets or inappropriate elimination. A cat wheel provides much needed stimulation and exercise for your cat all within the safety of their home environment. The Catswall Design Cat Wheel II is the original and best open format cat wheel, designed from the ground up with cats in mind. Made from MDF it is solid, sturdy and durable to provide your cat with fun, stimulation and exercise for many years to come.