Red plastic 96 peg test-tube drying rack. Holds 13mm tubes. Rack can also be used to hold and dry electrophoresis and chromatography plates. Rack dimension 6.87 x 4.87 x 2.5 inches The test tube drying rack has 96 pegs to conveniently hold inverted test tubes (up to 13mm) for drying purposes, as well as to minimize the collection of airborne contaminants. Pins measure 4mm in diameter. The bottom of the rack has holes to increase air flow. In addition to test tubes, the drying rack can be used to hold and dry electrophoresis and chromatography plates.