Prescott Plastics 2 1/2” (63.5mm) Outer Perimeter Ribbed Plastic Hole Plugs, Square Black Metal Tubing End Caps, Strong Furniture Leg Inserts, Impact & Weather Resistant, Made in The USA - 4 Pack

Perfect fit!

They are great

looks and works just as described I just had a new steel carport constructed but the steel ends were open and I felt that those openings would be great places for bees, wasps and whatever else might like to build a nest. Remedy--cap them off ASAP.

Perfect for my Roman Chair (exercise equipment).The plugs that came with, came loose all the time. Eventually, lost....These plugs were a tight fit and difficult to get started, but they aren't going anywhere!I only needed one, but I replaced all of them so I don't have to keep tracking the old ones down.

The side grips are very thick and intended for thin wall tube...unfortunately I had a thick walled tube and the caps would not go in at first. I used a side grinder to flatten the side grips in order to get them installed. But I won’t fault the product for that, it’s just one of those things that you can’t see coming. I made them work but it looks like these are meant for 1/16 wall or less thickness.

Good plugs to fill in the square holes. So water and debris don't get in there. Would recommend this product. Just make sure you get the size right. As there are many different size square pipes.

I needed the plugs for the bottom of the steel posts on the Mayline Ranger Steel Drafting table. They were a perfect fit, so snug, I used a couple of taps from a five-pound hammer, and they slid right in.

Bought these to cap my 2.5" square 3/16" wall steel tubes/posts. Had to trim the corners on the underside (the part that doesn't show) a bit to fit. Otherwise worked good and looked good.