Trains both inhale and exhale breathing in the same breath.
Stronger respiratory muscles and increased oxygen.
For the moderately active not involved in athletes or formal exercise program.
Low level for Performing Artists to improve breathing techniques and breath control.

Technical Details

Size (LWH): 9 inches, 3.9 inches, 2.6 inches
Product Details
Product Dimensions: 9 x 3.9 x 2.6 inches
Shipping Weight: 0.95 pounds (View shipping rates and policies)
ASIN : B000ZJJN9U