Construction robuste en acier

Made of post-consumer paper

5 x 24 cm et arbore une couleur rouge foncé

fitting documents on their vertical side

work memos

JAM Paper Tyvek Envelopes, #11, 4 1/2 x 10 3/8, White, 1000 Pack VariesBy:envelope_colour_17838:White|envelope_size_8174:4-1/2" x 10-3/8"|envelope_pack_size_1000101:1000 Pack Construction robuste en acierJAM Paper Heavy Duty Tyvek Envelopes are some of the strongest and sturdiest envelopes available. Tyvek is a registered trademark of DuPont, the established chemical company responsible for developing this durable polymer. Tyvek is composed of high density polyethylene fibers, a synthetic material that is extremely hard to rip and tear. This type of material is the same used to build and insulate houses, so you can be assured the materials inside