Quality Park R4202 Quality Park Tyvek Open End Exp Envelopes, 10x13x1-1/2, White, 25/box

Tyvek® white expansion envelope features a Flap-Stik® self-adhesive closure.
Use for bulky items.
Resists punctures, tears and moisture.
Expands on sides to fit binders, books, reports.
Use instead of cartons or boxes. Superior protection for bulky items. Durable envelope resists punctures, tears and moisture. Expands on sides to fit binders, books, reports. Use instead of cartons or boxes. Lightweight envelope saves on postage. Clean, bright white color presents a professional image. More »