Hubba Bubba Bubble Blast Bubble Gum—What’s the biggest bubble you ever blew? Was it the size of a baseball? A grapefruit? What about a basketball? With the big bubble-gum flavor of Hubba Bubba, you’ll find yourself getting plenty of practice blowing the biggest bubbles you can. Why not challenge your friends to a bubble-blowing competition? Have some fun with Hubba Bubba Bubble Gum.