The Classic Balance Ball Leg Extenders add 2" of height to help you sit more comfortably and with correct posture.

• Extends the height range to 6'1"
• Easy to install; no tools necessary
• Set of 4

Materials: Plastic

Compatibility: Classic Balance Ball Chair and Backless Balance Ball Chair. These extenders are NOT compatible with the Ultimate Balance Ball chair, Custom Fit Chair or Stools.