Ergonomic Office Chair Shower Chairs Used on models: 3931 and

Used on models: 3931 and 3931A

quad flash 12-volt height 5" x diameter 3-1/8"

Powered lifter has two lead acid deep cycle batteries

360° rotation with 8 locking positions

Ergonomic Office Chair Shower Chairs Used on models: 3931 andErgonomic Office Chair, Mesh Office Chair w Adjustable Headrest&3D Arms Ergonomic Office Chair Featuring reliable ergonomic support, It's easy to adjust seat height, headrest, backrest and arms to meet different needs, the breathable mesh back and passive lumbar support good for sitting long hours High quality mesh resists abrasion and transformation, and the mesh back and mesh seat keep air circulation for extra comfy, Aluminum alloy baseSilent