Junk Ball is the official sized plastic baseball with scuff marks and a twistable ring around the ball. Backyard baseball fans play like the pros by throwing their favorite pitch. Just turn the ring, aim the scuff marks and throw! Junk Ball Baseball allows anyone to throw curves, sliders, fastballs, even knuckleballs. Each Junk Ball Baseball 2-Pack comes with the original Junk Ball white ball and red ring, and one of the three new Junk Ball color combinations.