The Printmaster brand offers a high-quality product in the form of these white, 24 lb window envelopes with a peel and seal closure. The package includes 500 envelopes, each designed for easy and convenient sealing. This model (61595) is a reliable option for businesses and individuals needing a reliable shipping solution. With its unit quantity of one box, this product provides a cost-effective and efficient solution for sending mailers and other correspondence.