Google Ads' search ad copy allows you to have up to 3 headlines, and up to 2 descriptions:
What should I put in my headlines and descriptions?
Get creative with ad copy! Create a few different variations to A/B test and see what performs best. Here are a few things to consider for your ad copy:
If price is a selling point, include it in the headline or description
Mention key attributes of the product in the headline and/or description. These attributes would likely be the same ones you would include in your product title or bullets on your Amazon product detail page
If applicable, mention free shipping and/or free returns
As mentioned above, create multiple ad copies to A/B test. We also encourage testing between the Brand Store and PDP as the ad destination. Make sure the ad copy and the keywords you choose are consistent with the destination.
If you're advertising a particular product line, set the ad destination to the store page specific to that product line or to a product detail page with other products in that line as variations.
When bidding on branded keywords link to either your main store page, or to your bestseller/hero product PDP, or to a new product introduction