• --High-Quality Materials: Crafted from flexible pure silicone materials, the exerciser ensures long-lasting performance and reliability.Making it a reliable companion for your fitness journey
• The Trainer is a lightweight and portable exerciser that helps build muscle strength and intensity,endurance of the respiratory muscles.Mostly the choice of athletes and singers.
• --Easy to practice: Just need to use it once or twice a day is easy to adjust resistance valve to pratice with the simple design.

Shipping Note: Shipping to Alaska, Hawaii, PO Boxes, and APO addresses is not available for this item

Warranty: 90 Day Woot Limited Warranty