100% recycled

Leur transparence unique mettra en valeur leur contenu

making it ideal for brightening and creating texture on your paintings on canvas

daycare centers or any classroom setting

JAM Paper Tyvek Envelopes, 9 x 12 Open End, White Airmail, 500 Pack VariesBy:envelope_colour_17838:Assorted|envelope_size_8174:9" x 12"|envelope_pack_size_1000101:500 Pack 100% recycledJAM 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