12x18 Clear Document Protectors Waterproof Zipper Top

12x18 large document protectors are heavy duty .13 mil thick vinyl envelopes with a waterproof zip top to protect blueprints, charts, maps and other valuable papers from dirt, dust, and moisture. They are great for commercial and marine applications. Write notes with grease pencil or water-based felt pen on the translucent vinyl covers that wipes clean with a dry cloth or soap and water. The large vinyl envelopes offer outstanding protection but are not recommended for archival storage. The document protectors are listed by inside dimension and sold individually. Volume discounts are available.