TUBE RACK, Holds 1.5/2.0mL, Microcentrifuge Tubes, 4 x 6 for 24 Total, 11mm Diameter Tube Hole, 18mm Spacing, with 24 Cap-retaining Holes, 6.4mm Thick Top and Bottom Plate, Connected with Stainless Steel Stand-offs, 48mm Overall Height, SLAS Footprint