The balance disc is a strengthening tool suitable for both adults and children. Sitting on the disc activates core abdominal and trunk muscles, with extensor muscles working together to continuously strengthen and tone through small, natural movements. These subtle motions provide constant stimulation to deep core muscles, enhancing overall stability. Features - Color: Orange - Material: PVC - Size: Approx. 33 x 33 cm / 13 inch (L x W) - Promotes core stability, strengthens muscles, and improves balance and posture - Can be used to provide sensory input and support focus for children who have difficulty sitting still - Designed for ergonomic seating to help relieve back pain and shoulder discomfort - The unstable surface of the balance cushion engages more muscles to maintain balance during use - Includes a hand pump for adjustable firmness - Stability disc diameter: 13 inches / 33 cm Package list: 1 x Inflated Stability Wobble Cushion 1 x Air Inflator