N/Guard Armour 380x280x50mm GstP&S Pk100

New Guardian Armour gusset envelopes. Reinforced in a grid pattern with a woven polyester thread, providing exceptional strength. Peel & seal closure with Power-Tac adhesive for an exceptionally secure seal. Ideal for mailing bulky items such as box files and lever arch files. 130gsm paper. Manilla. Size: 380 x 280 x 50 mm. Packed 100.