Those photo-and-price product boxes at the top of Google search? Google Shopping ads — one of the highest-converting formats in e-commerce, because they appear exactly when someone searches for your product.
You need two accounts: Google Merchant Center (where your products live) and Google Ads (where you run campaigns). Upload a product feed to Merchant Center, then launch a campaign in Ads.
Shopping ads appear on clear purchase intent like 'red running shoes'. The person sees your product with price and photo before clicking — so they arrive ready to buy, which is why conversion beats text ads.
Bottom line: if you sell physical products, try Shopping ads. The key to success is a clean, accurate product feed.