The Trideer Pilates Ball is essential to any home workout studio. It's affordable, durable, and can be used for a variety of exercises from pilates to pre-natal yoga. Yoga Instructor Shahada Karim loves her Trideer Pilates Ball because it stays inflated for long periods of time and it works great for balancing and grip. She never has to worry about it losing shape during a workout and even uses it with her clients. Learn more by watching Yoga Instructor Shahada Karim's How-To.