SCMR060 60-hole centrifuge tube rack (1.5ml/2.0ml centrifuge tube on the front, 0.5ml PCR single tube on the back) 50 pcs/box 42 X 38 X 28 Made of polypropylene, durable and light weight, easy to carry. Holes are inscribed with number for tracking tubes. Each side contains 12 x 5 configurations and are used for freezing, storage, transport, and general benchtop use. These tube racks accommodates 0.5mL, 1.5mL, and 2mL centrifuge tubes or PCR tubes and 1.8ml cryotubes. Economical and space-saving rack for applications in lab or at home. Specifications: Material: Polypropylene (PP) Color: Red Model: 60 hole Hole Diameter: 7.75mm, 11.42mm Size: 206mm x 73mm x 23mm / 8.11 x 2.87 x 0.91(L*W*H) Package Contents: 2Pcs x Tube Rack