- These are the highest quality boards found anywhere!
- At 35-Mil, these provide greater protection than regular backing boards!
- Made from 100% acid-free, virgin wood, cellular fiber, 35 mil. thick cardboard.
- Contains a 3% alkaline buffer and a pH content of 8.0-8.5.
- Sold in packs of 50; Measures 7 1/2" x 10 1/2".
- White on one side and cream on other