Improve balance, posture, and core stability with the Champion Sports Exercise Disc. Made from soft vinyl for comfort and durability, this exercise disc features a knobbed top surface that provides grip and stability during workouts. The adjustable inflation allows you to customize firmness and height from 1" to 2.5", making it suitable for balance training, core strengthening, and lower back exercises. With a 14" diameter, it’s a versatile fitness tool for a variety of training routines.