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.
The SPRI UltraBall can help strengthen your core muscles. When you do exercises on a ball, your abdominal and back muscles are constantly working to make adjustments and keep you balanced. Unlike traditional exercises, the ball works the muscles on the front and back of your body at the same time, promoting a more balanced and healthy physique.
- 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
SPRI Products, Inc. is the leading manufacturer and distributor of rubberized resistance exercise products for the health and fitness industry. SPRI designs and produces innovative rubber resistance exercise products and has led the way in popularizing rubberized resistance workouts.