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
Value SS Plain 115gsm C4 ML PK250
GBC 34 Loop Wire 8mm No.5 Silver PK100
Brother DCP 1610W AIO Mono Laser