A home gym necessity, The Bala Pilates Ball is designed to help improve core strength, balance and aid rehabilitation. Over-inflate for more support or half fill to activate muscles you never knew you even had. Please note that the Bala Pilates Ball is not a weighted product. FEATURES: Meticulously designed for stability, barre, pilates, yoga, core training, stretching and rehabilitation Non-weighted Made of uber-thick, pop-resistant PVC Includes 1x Bala Ball and a custom Charcoal mini-pump. Ships deflated Product Dimensions: 8" diameter