Get ready for doubles or back-to-back games with the Gearbox GB50 Racquetball 2-Player Kit. This convenient bundle includes two GB50 racquets and a 3-pack of blue racquetballsâ perfect for friends, partners, or families looking to jump into the game. Built for durability and control, the GB50 delivers impressive performance for beginner and casual players. Whether you âre practicing or competing, this kit has you covered.