It features a flexible but durable soft-shell construction with premium urethane surface coating. It’s reinforced with heavy duty material to stay compact and round and prevent the ball from warping. It’s moisture resistant and packs ample padding for enhanced grip. The even weight distribution will ensure a consistent bounce off the walls for a comfortable catch.The internal foam core gives the most perfect weight distribution so that it never rolls off the straight track. The minimal impact force gives its optimal throwing power and speed.