Q connect envelope 458 x 324mm 135gsm self seal manilla pack of 125 product overview q connect envelope 458 x 324mm 135gsm self seal manilla 25 9011004 ideal for mailing bulkier documents these heavyweight q connect envelopes are made from 135gsm manilla the environmentally friendly pocket envelopes are made from 75 recycled materials and have a convenient self seal closure for ease of use this pack contains 125 plain envelopes measuring 458 x 324mm size 458 x 324mm plain pocket enve