The Balance Pods can be added to any movement to increase difficulty, improve stability, and strengthen core muscles. Use the pods for a variety of static and dynamic movements on hands, knees, and feet during workouts that incorporate stability such as air squats, planks, or push-ups. The dual textured slip-resistant design creates two levels of difficulty and instability during movements. The pods are inflatable, lightweight and portable for use anywhere. Use at home or on-the-go, these trainers are the perfect exercise accessory.