Staples Catalogue Envelopes with QuickStrip Flap - 10" x 13" - White - 100 PackThese Staples 10" x 13" envelopes use the QuickStrip closure technology, allowing you to seal a large number of envelopes in a short time no moisture required. These versatile envelopes are constructed of 28 pound durable, white paper, making them ideal for storing and shipping photos, invoices, brochures and other large documents. They come in convenient boxes of 100, ensuring that you have an ample supply on hand whenever you need them.