Heavy duty board back envelopes in white and manilla, made using 1000 micron backing board and a heavyweight face paper to ensure protection when posting bendable items.
Blake Board Back Envelope Peel and Seal ML 318x267mm PK 125
Board Back P&S ML 267x216mm PK125
Board Back P&S ML 394x318mm PK125
Board Bck P&S ML C4 324x229mm PK125
