Train and tone your abdominal muscles with the Fitness Gear Weighted Stability Ball. Made of durable PVC, this stability ball features a weighted filler of iron pellets to keep it in place and 1,000 lbs of anti-burst resistance. Improve your total core stability, balance and strength with bridge, sit-up and push-up exercises. The Fitness Gear Weighted Stability Ball enhances your core muscles and improves energy levels and flexibility. FEATURES: Weighted stability ball for improving flexibility and stretching Ball is weighted down with 1 lb of iron pellets to prevent rolling away Made of PVC and features 1,000 lbs anti-burst rated resistance Builds total core stability, balance and strength Train and tone abdominal muscles and secondary muscle groups Great for bridge, sit-ups and push-ups exercises Includes a double way hand pump Recommended User Height: 5'6" - 5'11" Ball Weight: 3.2 lbs Ball Size: 65 cm - 75 cm Fitness Gear