Archivally safe, sturdy 4-mil, chemically inert polyethylene zip-lock bags with a "write-on" block for easy identification of the contents. Sold in packages of 100.
Hollinger Metal Edge Inc
9401 Northeast Dr.
Fredericksburg, VA 22408
Phone: 800-634-0491
Phone: 540-898-7300
Fax: 800-947-8814