A popular choice at Amazon, this ball comes in five different sizes and is marketed as heavy-duty, suitable for both workouts and use as an office chair. GoFit Professional Stability Ball Walgreens.com& more Go to product viewer dialog for this item.

For those looking for extra resistance, weighted balls often contain sand that shifts as you move, making them excellent for Pilates and targeted core sculpting.

This 22-inch (55cm) ball is made from reinforced PVC and supports up to 150kg. It features a matte finish for better grip and includes a hand pump for easy setup. Total Body Balance Ball Kit Go to product viewer dialog for this item.

: When inflating for the first time, let the ball sit and stretch at room temperature for a few hours before pumping it to its full size.