A versatile range of eight sizes across thirty-eight products for all bulky postal applications. Amongst this extensive range you will find tear resistant, recycled, coloured as well as the unique board back gusset setting apart the Blake range from all others on the market. - These envelopes are boxed with their flaps folded down. - These envelopes have external side seams - One of the most secure ways to seal an envelope, peel away the release tape from the flap to reveal a strip of latex and press down to form an instant bond.
