Promotional merchandise, promotional items, promotional products, promotional gifts or advertising gifts are articles of merchandise that are branded with a company logo and used in marketing and communication programs, they are given away to promote a company, simple enough.
Calendar, bags, cap, clock, diary, pen, clothing, drink ware, tech products, key rings, novelty items, lanyards, umbrellas and much more are all useful items with a logo or a message to be given away to clients or potential customers.