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

just what the doctor ordered to finish my project. good product.

Prescott Plastics 1 1/4 Inch Square Plastic Plug can be used on chairs, or in my case on metal tubing on bicycle racks. If you order for bicycle racks be sure that you get the correct size. I tried both 1 and 1.25. If possible measure one of your existing plugs.

I built an industrial siized coffee table. These plugs work perfect for the legs!

Was a great fit easy install

These 1 square plastic plugs were perfect to use as protective ends on a home made 1 square aluminum hand rail for the stairway leading to the basement.

Only receive 3 in package ordered 4

Used for 3x3 metal legs for a desk. The plugs fit snugly and were exactly what I was looking for

Not the best material - softer plastic

The instruction you gave before ordering helped immensely

Bought these to seal up the square tube used as a spacer to raise truck toolbox, worked perfectly.