Bowling balls with exclusive 360 degree, limited edition graphics. At the bowling center or on display in your home or office, there's nothing cooler than a viz-a-ball. Real bowling balls designed with your favorite Images. Coverstock: plastic/polyester ball finish: high-gloss polish hook potential: 25 low recommended lane conditions: any patterns may not align perfectly and there is a very small seam where the patterns come together which does not affect the performance of the ball.