Advantage ①: low cost cheap. For promotional companies, marketing purposes is to make one's own product sales increased, sales increase can only make profits. So when choosing a promotional key chains, its costs must not be too high.
Advantage II: a publicity coverage is strong. If the time to customize this promotional key chains, printed above the company's brand or the product's tagline. A bunch of little key chain can do not only aim to attract consumers to buy the product, but also indirectly to a large extent publicity coverage purposes.
Advantage and aim at: help to enhance the image. 21st century consumer, brand effects very seriously. While most consumers to measure a brand's good or bad, not just through the quality, more often through images. When consumers buy the company's products, can receive free beautiful gift key ring, then to some extent improve the brand recognition .