Get this SPRI Weighted Stability Exercise Ball, 75CM on sale for $14.88.
The SPRI Weighted Ball is weighted for added resistance, designed to burn calories faster. This ball has an anti-burst durable, thick-walled construction and stay-put technology to prevent the ball from rolling away. Use this ball to build strength and flexibility or as a cardio tool and you progress in your exercises. Available in 3 sizes: 55cm, 65cm, 75cm.
Shipping is free with your $35 purchase.