1-3/8" Sleeve 5-1/2" long
This sleeve is used to be driven inside of 1-5/8" - 17gauge chain link top rail tubing,
than you can insert 1-3/8" top rail tubing inside of the sleeve.
Used in the construction of greenhouse arches, by installing 1-5/8" top rail
tubing into the ground, than the sleeve will allow you to build 1-3/8"
hoops that will slide inside of your fence post.
The sleeve will fit tight inside of the 1-5/8" post, driving them in with a
board and a hammer is required.