Sears offers the NordicTrack 65cm Antiburst StayBall
in Blue (pictured), model no. NTSB6511, for $10.97
. Opt for free in-store pickup
to avoid a $9.50 shipping charge. That's $10 below the lowest total shipped price we could find elsewhere. Sales tax is added where applicable. It comes with a dual-action hand pump, exercise chart, and fitness guidebook. This exercise ball is designed for anyone between 5'6" and 5'11" tall.
Also available is the NordicTrack 55cm Antiburst StayBall in Yellow, model no. NTSB5511, for $11.97 plus the shipping options above. That's a low of $9. It's designed for anyone up to 5'6".