Test tube racks Plexiglas (PMMA), 12 x 40mm

Cell Divider Only, Standard Box, 16 Cell - 4 6/7" × 4 6/7" × 1 5/16" - 1.19" (30.2mm) Cell Opening

Standard White 4 3/4" Cardboard Box with Drain Hole Assembled with Dividers, 36 Cell - 5 3/4" × 5 3/

White 2" Cardboard Mini Box with Drain Slots - 3" × 3" × 2"