4 Pack 1.5 Inch Square Tube End Cap Plastic Plugs, 1.5x1.5 Square Tubing Plug, Tube End CapsTubing Post End Cap Suitable for Square Tube Square Plastic Plug, Tubing Post End Cap Square Tubing

I was impressed by how stiff this plastic was. In fact, when I took them out of the package I worried at first that they would be a bear to insert. The retention fins were thin enough where that turned out not to be a problem and they pushed in without excessive force. There is a decent amount of plastic that abuts the tubing end-wall as well. My application was more aesthetic, but i wouldnt be too afraid to put some axial load through them- unlike some of the soft and squishy materials endcaps are often made from.

Used on boat trailer, worked perfect.

didnt fit right

Easy to install

Have been trying to locate a supplier for these plug. My factory OEM ones have fallen out and I have not been able to find replacements until now. Great replacement option.

Worked perfect for capping off 2in square tube. Made project have a clean finished look. Saved me the trouble of having to weld on end caps.

I had a single open tube on my fence that needed one of these plugs. I had a hard time finding them locally so had to purchase this 12 pack. The price was right and it saved me the headache and cost of driving around looking for them. It fit well, looks just like the existing caps on other posts and was priced right. What more could you want?

The product is a standard 25mm(1”) Square Black Plastic Plug for 1 x 1 tubing. The product fits my tubing, it does the job. I really needed only two pieces. Other similar products are sold in large quantity packages. This was the smallest (12 pieces) quantity package I could find on Amazon. So, if you need only a few 1 x 1 plugs, buy these.

Easy to install and fits snug.

As Advertised