Small & Mighty: Our 9" exercise ball, isn't just another prop to add to the home gym, it packs a real punch. Perfect for yoga, Pilates, barre and physical therapy – it helps strengthen core and balance, while toning and sculpting muscles! Strong & Durable: Our core ball has been crafted using high quality, professional grade PVC and an anti-burst coating, to withstand up to 600lbs of pressure. Endorsed by physical therapists and personal trainers to train and rehabilitate. Portable Props: Our fitness ball is a great way to incorporate a rigorous workout, without intrusive and impractical equipment. At only 9 inches, our small exercise ball also easily deflates to take wherever you go. Travel, train and tone! Versatile: Whether you need a therapy ball, or a barre ball, these toning balls fit the bill! Designed to engage your core to keep you balanced while exercising, they target hard to reach muscles. They also offer great lumbar support while seated!