2Inch (50mm) Square Plastic Hole Plugs Insert (20 Pack), Heavy Duty Black Hardware Plugs and Unistrut End Caps for Square Tubing, Glide Insert for Pipe Post, Chairs and Furniture by Prescott Plastics

Much better upgrade on a square tube frame table. Using a rubber mallet these slipped into place for a tight fit.

I just had to return for the correct size.

Perfect fit

Nice fit

These fit perfect in 1 O.D. Aluminum tubing @ 1/16 (16 gauge ) thickness. I tap them in with a rubber mallet and I doubt that they EVER fall out!! They are great quality , they are so good, I ordered a extra lot so I never run out.

Arrived in one day. Fit tight in the tubing which is good.

These worked perfectly for me in 1 steel tubing. I am put them and and take them out easily. There is no chance of them coming out. I have them added to some DIY steel tubing roof racks I made. See the before and after photos.

The Prescott Plastic square plugs for chair are excellent quality and fit perfectly. Also, their customer service and satisfaction is top notch. Great company!!

Easy to install

For square pipe ends on table,good.