Teddy Atlas heavy bag / with filling Teddy Atlas, trainer of 17 World Champions, takes you through professional-quality heavy bag workouts that are great for all skill levels of boxing training. • Use the CD or download to your mp3 player for use anywhere you train • Specially designed heavy bag provides a superior training bag for all required punches • Bag is double-ended to stabilize target • Double reinforced face for durability • Chain assembly & bungees are included