This is IN SPANISH ONLY from what I can tell. Here's the English translation of the back of the box:
Yoga is the best way to get fit! The time-tested postures and exercises work wonders on the body—both inside and out. Yoga tones your muscles, but that's not all—even the internal systems of the body become stronger and healthier. Your nerves, circulation, and digestion improve so your body can work more efficiently.

Goodbye Inertia takes you through a series of exercises that will banish your lethargy. You will:

• Wake up your spine with spinal twists—and that means energy!
• Tone kidneys, liver, and pancreas
• Slim your waistline
• Tone sciatic nerves and adrenal glands
• Improve the health of your reproductive organs

The Fun Challenge Series requires strength and flexibility.