The product description says:
"Kong Wubba is a fun, interactive toss and tug toy. Durable re-enforced nylon fabric covers two balls - a tennis ball on top and a squeaker ball beneath. The long tails make it easy to pick up and throw. Dogs love to squeak the Wubba and shake the flapping tails back and forth."
"Love to squeak it and shake it", huh? How about destroy it the second they get it in their mouths?
Didn't take him long...