WZB 1 1x1 Square Tube End Cap Plastic Plugs 12 Pack, 1x1 1 Inch Square Tubing Plug 1x1 Tube End Caps Fence Post Pipe Cap Cover Tubing Insert Chair Glide Finishing Plugs, Black

Needed to close out the ends on my solar panel racks on travel trailer and these fit like a glove. Inexpensive and appears well made for purpose. Have extra for future projects.

These plugs are very well made. The parts seem to be made from a nylon and not polypropylene (I may be corrected). They feel dense and the fins maintain tension when pressed into the tube. They are not easy to remove. The base is thick enough and feels like it should last a while. They are worth a look if you need.

Fit snuggly inside 1"x1" mild steel tubing with .120 wall.

great functioning

Worked good for my aluminum tubing to cap them off so they don’t make a lot of noise.

I think our patio set was bought at our local Fry's grocery store about 20 years ago. Needless to say much cheaper than what I see at our beloved Costco these days. As you see from the photos, the front and back legs are different dimensions, but what made it more complicated is that the back legs are 1"x3/4" which I could not find on Amazon so I ordered these 1"x1" plugs and just trimmed them with a razor knife. I maintained the foot dimension for longer wear life and better stability. My photos show what tools I used and how it came out. New cushions and plastic feet makes the set feel like new again and saved so much over buying new furniture. If you have a similar patio set, I hope this gives you the confidence to renew not replace. It was an easy project.

Perfect fit!

These fit 1" square tubing but you may need to use a knife to trim down the barbs to make them easier to stick in.