Sending invitations or other important letters, such as year-end communications or a thank you card to employees and suppliers for christmas, can become a distinctive element, especially if personalized envelopes are used. among the values of colors, shapes and materials, personalized envelopes become the essential support to be recognized right from the "cover": not only the content but also the container becomes important in order to be remembered and here it is colored envelopes are a great way to hit the target. choose wowlab4u's personalized envelopes and discover the wide range of products that support your business and your marketing.