Designed specifically for the Adult & Jr. Swimmer''s Snorkel
Increases the ability of muscles to work better when oxygen levels are low
Replicates Higher Altitude Workouts
Increases lung workout load by 40%
Aid in forced inhalation and exhalation

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 2.3 inch
Height : 0.2 inch
Length : 3.8 inch

Item Weight: 0.48 ounce (View shipping rates and policies)
Shipping Weight: 0.64 ounce (View shipping rates and policies)

ASIN : B001GQ2BO0