100 high-quality and extra thick backing boards to protect comics from bends and creases.

- 100% certified acid free
- Excellent volume and rigidity
- Min. 40 pt. high bulk boards, less fibre
- Min 7% calcium carbonate buffered
- Full high quality front side coating
- Precision cut & bright white finishing
- Backing Board dimensions: 171 x 266 mm
- 400 g/m² Backing Board weight
- Made for long-term archival storage
- Fits Ultimate Guard Current Size bags