6 Cell Partition for XCD90BB Made from B-flute, archival blue-gray corrugated. The material isacid-free; lignin-free, and buffered with 3% calcium carbonate. Cells are 5 x 5-7/8". Also comes with three folded spacers to keep CD's upright if a cell is not full. Spacers fold to 2-1/4 x 4-1/2" (flat 2-1/4 x 9").