About 3 1/2 ft. Long. No hole. , my cable is to big and stiff. I think the best design would be, a smaller diameter cable, maybe even 100 lbs. fishing line. athatched to the inside rod so when extended, you get a 4 in. Loop. Mine is definitely rinky, dinky, but it works. I'm sure, Someone on this site could come up with a better design.@chuckshooter Thanks for that, looks great.
12 foot or so in length? Are you drilling a hole in pvc where the hose clamp is to feed the end of cable to outside then the clamp secures it?
I'll add this, old curtain rod works pretty good. Because there's one that slides inside the other already made up.
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