EXCLUSIVE: Office size 60mm (2.5") wheels, versus 50mm (2") used on other brands. Bigger and wider wheels provide a smoother rolling experience
CHOICE of 2 frame finishes: Silver Flakes on Black or Solid Black. Back cushion and wheels are black. Rolling base with 5 wheels. Isokinetics Inc. logo on ball and back cushion
ADJUSTABLE TWO WAYS: 4 leg height positions and 4 back support positions accommodate a wider range of body heights. Ball top height ranges from 22.5" to 25.5" before sitting on
IN THE BOX: An Isokinetics Inc. brand 55cm exercise ball, made of special durable non-latex material that prevents bursting (deflates slowly if punctured), available in your choice of colors, and a small starter pump. 300 pound limit. Ball max size: 55cm (inflate between 52cm to 55cm, according to preference). NOTE: Make sure you fill ball to at least 52cm: With the ball on the floor, that's 52cm or 20.5", measured straight up to the point level with the ball top
COMPARE our Back Rest. Designed for useability. Can be adjusted in 4 settings. The lowest setting is 9" from the center of the ball, the highest, 6". This allows for a comfortable lean back position or, in the highest setting, it acts as a lumbar support, further encouraging you to sit up straight