You are bidding on 1" Flat Canopy Fittings for 1 unit
!
This means to accommodate 1" diameter pipes(1" inner diameter pipes )
Outside diameter of the pipe (or tubing) which fits 1"fittings is 1 1/8"~1 3/16"
(close to 1 3/16").
you can build your own custom canopy like a following picture.
4pcs
If you want to make 2 units, just add 4 way corners.