"Plates" can refer to several things, such as dishware, weightlifting equipment, or even tectonic plates. Could you provide more context for the word you'd like paraphrased?

I’m considering getting a pair of 10 lb Everyday Essentials bumper plates, and I was wondering if I can use them alone on the bar, and if they’ll stay stable during use.

I’ve used individual 10 lb Rogue bumper plates without any issues.