Side-opening Poly Envelopes 10 Packs expanding plastic legal size envelopes clear folders with closure. String tie closure, ^ 1-1/4" Expansion Expandable Gusset design allow our clear plastic legal size envelopes holds sheets paper. Side loading expanding files Envelopes large capacity filing envelopes will be your great organization tool. Perfectly storage receipts, taxes, personal papers, project, puzzle, photos and important document.^ Visible in Clear Plastic : The transparent plastic allows you to see what's contained in the folder immediately without having to open and fish around. And it is convenience to use and take the files or documents you need.^ Adjustable Flap : Adjustable flap with Pre-fold line, Poly envelopes with flap and string tie closure, works great for long-term storage and keeping things organized. Wonderful for any office, school and home.^ Tear and water resistant : Acid free and PVC free Poly material, sturdy and durable. This envelope folders with closure are more thicker, tough, soft but also water resistant.