Tube Rack, 50 x 12mm

Standard White 2" Cardboard Box Assembled with Dividers, 49 Cell - 5 1/4" × 5 1/4" × 2"

Tube Rack, 50 x 15ml (16.5mm)

Cell Divider Only, Standard Box, 64 Cell - 4 6/7" × 4 6/7" × 1 5/16" - 0.57" (14.6mm) Cell Opening