Streamline your mailing operations with these professional 6" x 9" catalog envelopes. Crafted from premium 24lb white wove paper, these open-end envelopes provide the perfect solution for sending catalogs, brochures, flyers, and important documents. The traditional gum flap ensures contents stay securely sealed during transit, while the open-end design allows for quick and efficient stuffing - a time-saving feature for busy offices. Measuring exactly 6 inches by 9 inches, these envelopes offer ample space for your materials while maintaining a professional appearance. Each box contains 500 envelopes, making them an excellent choice for businesses, schools, and organizations with regular mailing needs. The sturdy construction protects your documents during handling and mailing, while the classic white finish presents a clean, professional look that's suitable for all business correspondence.