Penn Racquetballs (5 cans) 3 pack Ballistic Penn Ballistic Racquetball Balls The Penn Ballistic 2.0 is Penns fastest ball. Increased speed allows for the most intense racquetball ever Designed for outdoor racquetball with explosive speed and increased durability. The new Ballistic 2.0 is also great for lightning fast indoor play. Red color for high visibility