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

Gorilla lift gate system on my tailgate. Dont want the rain to come in and rust out the spring.

Fit my side gate perfectly.

My husband found them perfect fir and good quality.

Worked great just what we needed

Just what I was looking for!

I bought this to replace the missing one on the post on the mailbox stand (every day there was a hornets nest inside the tubing...). The fit was great, the inner edge was easy to fit inside the metal tube, I used a rubber mallet, but it fit snugly without any problem getting it attached. Made of dark black hard plastic.

Product arrived ahead of schedule and was reasonably priced.

Used on aluminum patio chairs. A little snip for proper sizing and off we go.

Nice looking product, excellent quality !!

Used these with a little clear caulk on the open ends of our pontoon boat bimini frame. Had a major problem with bugs/spiders making nests in the frames. Problem solved.