Core Balance, burst-resistant exercise ball - for fitness, yoga, pregnancy - 55cm 65cm 75cm 85cm - includes air pump

"VARIOUS SIZES FOR A PERFECT WORKOUT: Core Balance fitness balls are available in different sizes to match your body height, allowing you to comfortably exercise. Refer to our size chart (Image 5) to determine if your exercise ball should be 65 cm, 55 cm, 75 cm, or 85 cm. Each exercise ball also includes a pump and a measuring tape for easy inflation to the correct size. DEVELOP CORE STRENGTH & BALANCE: A exercise ball creates instability when you sit, lie, or lean on it, forcing you to engage your core muscles to maintain stability. Training with the exercise ball not only strengthens your core and improves balance, but also tones muscles, enhances posture, and increases flexibility. NO RISK OF BURSTING OR SLIPPING: Made from durable anti-burst PVC, Core Balance exercise balls do not burst if punctured. Instead, they slowly deflate for your safety. Additionally, these gym balls are equipped with anti-slip lines for optimal grip on smooth surfaces to prevent slipping. TAKE YOUR WORKOUT TO THE NEXT LEVEL: Gym balls are a versatile exercise tool that can easily be incorporated into a variety of exercises, including crunches, bridges, weight training, yoga, Pilates, and more. The instability of exercise and yoga balls not only engages typical muscles, but also trains the stabilizing core muscles. USE AS A CHAIR: Sitting at a desk all day? You can use an exercise ball as an office chair to strengthen your core muscles. Additionally, you can use an exercise ball as a pregnancy ball for prenatal exercises, pregnancy discomfort, and labor. Physiotherapists use exercise balls to help individuals rebuild core strength after injuries."