Retractable Polls

I have been searching the web for the poles used in the clam type ice houses. Bigger pole slides into a smaller pole with the spring loaded buttons to hold them into place. I want to make a duck blind using the same concept as a clam, but I can’t find any resources to direct me toward buying them, constructing them, or even a name I could google. If anyone has any info that could direct me in the right direction I would appreciate it. Thanks
-Bob

I have made round ones out of conduit of 2 diferent sizes
that slip into each other worked great

Eagle Mouldings
10550 County Road 81
Maple Grove, MN 55369-4045
(763) 493-2995

eaglemouldingsinc.com

I think the guys name is Ron that runs the place small 1 or 2 man shop ,with lots of cool stuff and i think he had the buttons also, if not im sure he knows how to get them

I was able to buy a bag (12) of those spring button things from clam, i think they were like $3. they will work as long as the pipe or conduit is not too small of a diameter.