Develop, strengthen, and tone abs, hips, legs, back and buns with SPRI's® newest stability ball, designed to deliver long-lasting, professional durability. Together with ACE's Total Body Training DVD, you'll have everything you need for a safe and effective total body workout that builds strength, burns fat, and improves flexibility and balance. Includes ACE Total Body Workout DVD, 55 cm Xercise Ball TM, Instruction Sheet, and maintenance pump.Made for a height of 5' to 5'7'' with the maximum inflation size at 21" or 55 cm. Approved by ACE, the American Council on Exercise!This total package includes: