The below description is taken from LEGO.com.
Lisa and Snowball II
Sometimes, Snowball II can be a hard cat to love. Fortunately, Lisa Simpson doesn't mind if her beloved pet drinks out of cereal bowls, deposits hairballs on the carpet, or even uses Lisa’s prized bookshelves as a scratching post. As far as Lisa is concerned, her cat is the finest, most noble feline who ever lived. Even Snowball II wonders where on Earth Lisa got that crazy idea.