Item #: QUAR4292. DuPont™ Tyvek® Expansion Envelopes• Superior protection for bulky items• Use instead of cartons or boxes• Expands on sides to fit binders, books, reportsOpen End, Regular Weight25 envelopes per box.White12 x 16 x 2 Customers also search for: 12 x 16 x 2;Envelope;Envelopes;Expansion;Lightweight;Mailer;Open End Envelopes;QUALITY PARK;Self-Seal;SURVIVOR;Survivor Envelopes & Mailers;Tyvek;Tyvek Envelope;Tyvek Envelopes & Mailers;White