Product DescriptionStainless steel test tube rack
Size: 8.25"x4.5"x4.5" (21x8.5x8.5 cm)
Holds 40 tubes in 4 rows
Hole dimension: 16x16 mm (0.6"), fit test tubes with diameter of 15 mm or less
Good for glass or plastic test tubes with diameter of 15 mm or less
Freezer safe. Autoclave safe. Long lasting.