"Local Product on Google Place Pages" is a new feature that automatically brings your offline catalog to the web, letting customers view your products and search your local inventory on your Place Page before visiting your store.
"When you provide Google with local product availability data, your Google Place Page will now automatically include a new section, "Popular products available at this store", featuring five popular products along with price and local availability. For shoppers unfamiliar with your business, this section shows the types of products available in your store," Google stated.
"If shoppers are looking for a specific item, they can click "Search within this store" to search your product inventory to see if a particular item is in stock nearby."
"To automatically display local product availability on your Google Place page, you'll need to first share local availability data with Google through a Merchant Center account and claim your a Google Place page," explains Google.
[Source: Google Merchant Blog]