Fitness Republic Pilates Weighted Balls [Combos] Advantage: Pilates Weighted Balls help sculpt strong and healthy muscles. Made Type: Pilates Weighted Ball are made of anti-burst high quality material (PVC) Compact and light-weight for easy use - Dimension (5.5 x 5.5 x 5.5 x 5.5 inches) Manufacturer Warranty: Warranty of 12 months Money back guarantee: If you are not 100% satisfied with your purchase