Dogs are attracted to the unique shape of the Wubba. Wubbas have have a flexible ball on the bottom with a squeaker, a more rigid smaller ball on top all wrapped up inside durable fabric. The long tails make the Wubba easy to throw and dogs will love it when the tail flaps through the air. Many dogs love to play with it and fling it in the air by themselves. Play catch or tug with the Wubba! Dogs love it!