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

Used on boat trailer, worked perfect.

They went on very easy and made the product look like it had be made by a pro. That not me. I would buy them again it I needed them.

I repainted my garden hose hangar and this fit perfectly to keep out the rain and allow the hangar to last additional years.

tight fit and they look good

took some brute force, but got it into a 1 inch square opening. it wont be coming out easily.

Used to replace a broken cap on my weber ssp. Fits perfect!

Theyre plastic plug caps. They work like they should. Nothing fancy.