Hartz Just For Cats Screw Balls Cat Toy.. Swat. Play pattern. Every Toy Fills A Need. Through play, cats exercise their natural instincts to explore and thrive in the world around them. Filling your cat's environment with toys that stimulate all of their natural play needs will help keep them healthy, active and engaged. Share play pattern. Hunt, play pattern. Swat, play pattern. Cats are naturally driven to manipulate objects in their environment with their paws. Swat toys help build and maintain coordination, as well as facilitate exercise. *Hartz and other trademarks are trademarks of The Hartz Mountain Corporation. Visit our website www.hartz.com.