NEW YORK (AP) — Twitter is expanding its reach into commerce with a new tool called “Offers.”

Advertisers can post promotions and discounts in users’ Twitter feeds, whether or not Twitter users follow those merchants.

To redeem an offer, customers enter their credit or debit card information. They can use the same card to redeem the promotion in a store. It only works in the U.S. but may be available in other countries in the future.

San Francisco-based Twitter says it will encrypt and store the credit card information but users can remove it any time

The short messaging service has slowly been branching out into shopping. It launched a “Buy” button in September that lets users make purchases or donate money to charities without leaving Twitter.