In addition to the Grid and List formats, the new Card format is available only for Custom Ads through SiteStripe (explained earlier).Getting started
To create the new Custom (Card) format, you need to visit the SiteStripe toolbar.
1. Log on to Amazon.com using your Associate Central email ID to view the SiteStripe toolbar. Note: You also need to make sure that you have not disabled the SiteStripe toolbar previously. In case you have disabled the toolbar, you may re-enable it from the SiteStripe configuration page on Associates Central.
2. Once you log on to Amazon.com as specified above, you should see the SiteStripe toolbar on top.