These Q-Connect C4 envelopes are designed for professional correspondence, providing a reliable way to mail A4 documents without folding. Made from 100gsm white paper, they offer a clean, opaque appearance for business or personal use. The envelopes feature a convenient self-seal closure, eliminating the need for moisture and ensuring a quick, secure seal. A transparent window measuring 40 x 105mm is positioned 24mm from the left and 213mm from the bottom edge to display address details clearly. Each pack contains 250 envelopes, each measuring 324 x 229mm, making them suitable for standard office filing and mailing requirements.