Covers for railing sleeves in concrete?

[TheRaven]

Is there such thing as covers for the sleeves that railings slide into in the concrete? We are not using our shallow end railing because it leaves more room in the steps. But that leaves these holes:



I searched but I can't find any kind of cover for them, but then again I have no idea what I would use as a search term. I don't know what they are called.

 

[magiteck]

Would these work?

Amazon.com: Suiwotin 30PCS 50mm/2" White Hole Plugs Plastic Flush Type Hole Plugs Snap in Locking Hole Tube, Furniture Fencing Post Pipe Insert End Caps (White): Home Improvement

Amazon.com: Suiwotin 30PCS 50mm/2" White Hole Plugs Plastic Flush Type Hole Plugs Snap in Locking Hole Tube, Furniture Fencing Post Pipe Insert End Caps (White): Home Improvement

www.amazon.com

 

[pjt]

I have these, and they work well (and come in several colors): Anchor Socket Cover