PLEASE DO NOT BEND HARD BOARD BACKED ENVELOPES
C5, C4, C3 C3+, B4

Blake brand envelopes give an economical and practical way to post items while still providing protection. 

GENUINE Blake board backed envelopes giving expectional HIGH QUALITY

The 600gsm back board helps PREVENT BENDING giving UNRIVALLED PROTECTION, while keeping weight at a minimum, keeping your postage costs down.

Finally TIME SAVING and NO MESS thanks to the easy to use peel and seal adhesive strip. 

EASY OPENING for quick, easy and frustration free opening.

Made from RECYCLED KRAFT MANILLA - ensuring not only are they saving your products
 but also helping to save the environment

ALL sizes available - from C5, C4, C3, C3+, B4