Pack of 100 Tyvek E4 Gusset Envelopes 305 x 406 mm Peel and Seal Plain 55 gsm White

Tyvek Gusset Envelopes. Envelope Type: Plain. Format: E4. Material: Polyethylene. Maximum Gusset Expansion: 51 mm. Paper Weight: 54 gsm. Seal: Peel and Seal. Dimensions: 406 x 305 mm (H x W). Colour: White. Quantity: 100 x Gusset Envelopes.