ABOUT THIS ITEM
Includes fully adjustable handles that attach and detach easily
Two pedals move independently or lock together quickly and securely
Smaller base of support and dual pedals 
The only Stability Chair™ built with a double-steel frame
Pedals cushioned with ultra-soft foam for comfort
Spring tension adjusts easily with unique hook-on system
Compact size for maximum portability and easy storage
2 heavy chair springs, 2 light chair springs, 3 hook-on spring attachments
Easy-roll wheels facilitate repositioning or moving equipment
High-density foam and vinyl covered pedals