Callaway Chrome Tour Retro Golf Balls (1 Dozen)Enjoy the game. The Chrome Tour Retro Collection pays homage to Callaways first ever golf ball, Rule 35. Released in 2000, the Callaway Rule 35 golf balls marked the companys innovative entry into the ball market with two simple, golfer focused options: Blue for softer feel and Red for a firmer feel. At the time, Rule 35 was Callaways fictional addition to the official 34 rules of golf: Enjoy the Game. This limited edition ball brings the iconic Rule