What are the limitations of title and description tags?

[european]

What are the limitations of title and description tags?

[ToolGIR]

AFAIK there is no technical limitation for title and description tag.
But it's recommended for title not to exceed 70 characters and description 160 characters because Google shows only that number of characters in search results for them.

[Akash Varma]

Title tag should contain 60 characters & description tag should have 160 characters. Apart from this Google may adjust title & description in their searching panel.

[rohitnagpure336]

I think Search engine can crawl website title around 55 to 60 characters and description 155 to 160 characters so if you want to promote your keywords on title and description then you can keep your title with keywords in 55 to 60 characters and description 155 to 160 characters.

[Yana]

For optimum effectiveness, meta descriptions should be 70-160 characters long. The most effective page titles are about 10-70 characters long, including spaces.

[123andrew]

It is recommended that title must contain characters between 55-60 and description between 155-165, as this is the number of characters that google shows in its search result.

[Ajinkya Samark]

Hi,
In title 55-60
Description -  155