Fit's most 1 3/4" outside diameter pipe
All inserts have a 1" center hole to accept the 1" thick steel shaft
We cannot guarantee measurements will be correct for your particular pipe dimension or wall thickness
Fit most Ambassador, Cochran, Douglas, Keller, Precision Furniture, Stoneyville & Tempo chairs
Measure outside of pipe only.
Fits 1 3/4" Outside Diameter