• The envelops are made of paper with a strength of 80gsm
• The dimensions of the envelops are 22.9 cm x 32.4 cm
• They are gummed and have no window
• The envelopes provide superior protection and strength with durable, heavyweight 80gsm paper. 
• The C4 envelopes feature an extra strong and secure Power-Tac peel and seal closure, easy open tear strip. 
• Suitable for unfolded A4 documents, this pack contains 15 manila envelopes.