Top Loader Box SPACER.
11-15/16 x 4-1/8". Fold on scores as boxes fill.
Archival E-Flute Blue Corrugated Cardboard.

Top Loader Box Spacer
Museum-grade archival.
11-15/16 x 4-1/8". Fold on scores as boxes fill.

Made from E-Flute Blue Corrugated Cardboard. This acid-free, lignin-free material has a pH 0f 8.0-9.0 with a 3% calcium carbonate buffer. Fold spacer on scores to decrease size as box fills with cards.

For use with the following boxes:
XTL50AF: Spaces boxes @ 50%
XTL100AF: Spaces boxes @25% and 50%