The purpose of the Meta description is to get someone searching on Google to click your link. which means the meta description is an HTML attribute that provides a short summary of a web page or website. You have to follow the below things to write the best description.
- Up to 155 characters and sometimes more (160) – Google recommends the meta description should be in 160 characters.
- Including a call-to-action: This is helping to drive more traffic for that page.
- Containing the focus keyword: If you can add the main or focus keyword on your meta description, that will give the extra credit for the ranking.
You can check from this tool: https://blog.spotibo.com/serp-preview-tool/