Quality Park 12 x 16 x 4 DuPont Tyvek Expansion Mailers with Redi-Strip® Closure – Expansion – 12″ Width x 16″ Length – 4″ Gusset – 18 lb – Self-sealing – Tyvek – 50 / Carton – White

General InformationManufacturer: Quality Park ProductsManufacturer Part Number: R4497Manufacturer Website Address: http://www.qualitypark.comBrand Name: Quality ParkProduct Name: 12 x 16 x 4 DuPont Tyvek Expansion Mailers with Redi-Strip® ClosureMarketing Information: Expansion Envelopes with heavyweight Tyvek offer superior protection for mailing bulky items that are not too heavy. They are ideal replacements for costly boxes or cartons. Envelopes feature open-side style and convenient Flap-Stik closure. Envelopes made with DuPont Tyvek won’t rip, tear or puncture. They are much stronger and more secure than traditional paper envelopes. These 18 lb. envelopes are water-resistant and moisture-resistant. They are easy to use. Simply peel and seal. Packaged Quantity: 50 / CartonProduct Type: EnvelopeProduct InformationMailer/Envelope Type: ExpansionMailer/Envelope Width: 12″Mailer/Envelope Length: 16″Mailer/Envelope Gusset: 4″Basis Weight: 18 lbClosure Type: Self-sealingClosure Side: Open SideFeatures: Puncture Resistant Tear Resistance Water Resistant Moisture Resistant Heavyweight Physical CharacteristicsProduct Color: WhiteProduct Material: TyvekMiscellaneousRecycled: NoAssembly Required: NoCountry of Origin: United States