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

Excellent product, fit like a glove on my 2x2 tubing

Simple fix for raw tube ends on my pontoon bimini top

Perfect fit for a 1x1 steel square tube I bought at Lowes.

Exactly how it was described worked wonderfully

Used these post endcaps to replace the squeaky old wheels on a metal frame bed. Slid into the posts easily and held in place when I lifted the frame to see if they slipped out.

great product..fits perfedtly

Fits 1” square tubing from Lowe’s

Bought these to replace old brittle ones on our cott. These fit and work great.

Finishing touch to my welding project!

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.