Replacement 5 star shape Aluminium Base of Chair

Premium high quality Ø 640 diameter aluminum chair base.
Fits almost all average chairs with standard gas cylinders that have a (Ø 51mm) center support column.
Great for use as a replacement chair base or in new applications. Accepts standard casters with mounting stems Ø 11mm. High quality polished aluminum finish on top. Popular on medical and industrial stools and chairs and can be used on other chairs as well.

CHARACTERISTICS:

• Material - polished aluminum;
  
• R- radius: 320 mm;
• D - seat for gas-lift 51 mm;
• wheels: 11 mm.