SAFE Rock Collection Box-Stackable Wood Drawer for Rocks Minerals & Fossils Stackable, interlocking with variable compartments. Fixed center divider with half dividers (6 are supplied) which can be adjusted to suit your collection. Bottom lined with archival, blue velvet Size: 8-1/8 x 10-1/4 x 2-1/4"H. - (Inside depth: 1-5/16")