The petsafe slimcat treat ball is made by multivet and is a unique movement therapy for cats it will help to keep your cat in shape how does it work simply fill the cat treat ball with dry food or cat treats of your choice and put it on the floor your cat has to roll the ball around in order to get to the food so its a great way to give your cat a workout especially if your pet is slightly lazy or overweight it wont even realise that its exercising and its also a good way to keep acti