The Ball Base extends the possibilities of your exercise ball by providing a more stable base for it, making stability ball exercises more accessible to beginners. It extends the number of possible exercise routines you can perform, because openings in the LARGE ball base allow you to attach exercise bands and tubing (sold separately).

Features:

• Openings for bands and tubing allow additional exercise possibilities
• Sturdy, durable, one-piece construction
• Ball Base keeps the exercise ball more stable for therapy or exercise routines
• Small size holds 30-55 cm balls; Large size holds 65-85 cm balls
• Color: black