TEST TUBE RACK HOLDER

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

Standard White 2" Cardboard Box Assembled with Dividers, 81 Cell - 5 1/4" × 5 1/4" × 2"

Standard Yellow 2" Cardboard Box Assembled with Dividers, 81 Cell - 5 1/4" × 5 1/4" × 2"