General description These environmentally friendly Basildon Bond envelopes are made from smooth, 100% recycled, heavyweight 120gsm white paper. They feature a simple and secure peel and seal closure, along with a convenient address window. Ideal for unfolded A4 documents, these C4 envelopes have an opaque green interior for confidential mailing. Technical specifications Material: 100% recycled heavyweight paper Weight: 120gsm Size: C4 (suitable for unfolded A4 documents) Pack quantity: 250 envelopes