Features:Made of stainless steel, durable and light weight, easy to carry.Highly polished surface, no edges and sharps, chemical and corrosion resistant.Fit for 26 to 29.5mm test tubes, round holes, hold 10 tubes.Economical and space-saving rack for applications in lab or at home.3 Layer, 2 slots, each layer has a direction, slide the shelves in from one side, the other side has a lip that stops it, fits very snug.Note: Please check the diameter and height of your tubes before ordering. Specifications:Color: SilverMaterial: Stainless SteelModel: 10 holeHole Diameter: 30mmFit for: 26-29.5mm tubesSize: 180x80x85 / 7.09x3.15x3.35 inch (L*W*H)Package Contents:1 x Tube Rack