The BOSU Pro Balance Trainer has a flat and curved side that makes it useful for a wide range of exercise styles. Adding the element of instability brings more muscles into each movement while either increasing or reducing your range of motion by moving the BOSU Trainer higher or lower with the POWERSTAX. Visit our BOSU playlist for workouts and videos!  Features: Made of commercial grade materials for durability Molded platform provides added strength Non-marking non-skid base is gentle on floor Challenges users from seniors to pro athletes Offers unlimited options for use with plyometrics, agility drills, strength training and more Increases versatility of workouts by using the rounded or flat side This product does not ship to Canada or Internationally. US only.