The most important feature of Sitelink Extensions (including Enhanced Sitelinks) is:

• You can tailor the URL for each Sitelink Extension
• You can re-use the same landing page for multiple sitelinks
• You can display up to six links to deeper pages on a website.
• You can add up to two lines of descriptive text
• All of the above

or

• You can tailor the URL for each Sitelink Extension
• You can re-use the same landing page for multiple sitelinks
• You can display up to six links to deeper pages on a website.
• All of the above