Additional Information

The SPRI® Ultraball™ has superior performance and maximum durability which help make it the safest and most reliable stability ball on the market today. It's made of a heavier, thicker-gauge material than other balls, so it's more resistant to stretching or deforming and ideal for use in the most demanding club environments. The dimpled surface offers a 360 degree body-traction effect. Slow-deflate up to 600 lbs. Choose between 55cm or 65cm. Includes a free downloadable exercise guide.

SPRI® Ultraball™ Features:

  • Superior performance and maximum durability
  • Safest and most reliable stability ball on the market today
  • Thicker-gauge material
  • Resistant to stretching and deforming
  • Ideal for the most demanding club environments
  • Dimpled surface for extra traction
  • Slow-deflate up to 600 lbs.
  • Downloadable exercise guide
Size Max Inflation Heights
55cm 21" (55cm) 5' - 5'7"
65cm 25" (65cm) 5'8" - 6'3"