24 mil, acid-free, 3% buffered backing board.
Genuine acid-free, cellular fiber.
Meets strict U.S. Government standards for archival storage.
3% calcium carbonate buffer throughout, maintains a neutral pH.
White on both sides.
The highest quality backing board available anywhere.
Available in Current or Standard size
Sold in packages of 100
These bundle with Mylites 2 Current Comic Book Size